Free Wind Load Calculator with Florida Building Code overrides →
Comparison · Editorial

WindLoadCalc vs SkyCiv: An honest wind load calculator comparison (2026).

Updated 2026-05-24 · By WindLoadCalc Editorial

TL;DR — Who each tool is for

If you do multi-load global engineering across 9 codes (wind plus snow, seismic, dead, live; ASCE plus Eurocode plus AS/NZS plus NBCC), SkyCiv is a strong fit and sits inside a broader structural design suite.

If you do ASCE 7-22 wind loads — especially in Florida HVHZ jurisdictions where county-specific code overrides supersede the ASCE map — WindLoadCalc is purpose-built for the job, with the Florida Building Code values baked into the lookup engine.

Both tools are honest about what they do. The rest of this page is the detail.

1. Quick verdict

Which tool fits which engineer.

Both products solve real problems. They are not, however, the same product. Here is how to decide in under a minute.

Pick WindLoadCalc if
You do US wind loads, especially Florida.

A wind-load specialist with the Florida Building Code jurisdictional values that supersede the ASCE 7-22 map in HVHZ counties.

Best for

  • Florida residential and light-commercial engineers, especially Miami-Dade, Broward, Collier (HVHZ)
  • Window and door schedule work that needs real .xlsx output for AutoCAD drop-in
  • Anyone who wants every coefficient cited to its ASCE 7-22 section in the output
  • Engineers who need a Florida PE sign-and-seal on residential wind load reports (max 3 stories)
Pick SkyCiv if
You do multi-load, multi-code structural work.

A broad structural engineering suite covering wind, snow, seismic, dead, live loads across 9 international codes plus FEA and design modules.

Best for

  • International projects: Canada (NBCC), Australia/NZ (AS/NZS 1170), Europe (EN 1991)
  • Engineers who need wind plus snow plus seismic in the same project file
  • Teams already running S3D, beam, plate, or foundation design inside the SkyCiv ecosystem
  • Workflows where wind load is one input to a larger structural model, not the deliverable itself
2. Company background

Two tools, two origin stories.

SkyCiv (2013, Sydney, Australia)

SkyCiv launched in 2013 out of Sydney as a cloud-based structural analysis tool. The company built outward from a 3D structural model (S3D) into a broader engineering suite that now spans beam analysis, plate, foundation, and integrated load generators. The wind load calculator is one entry point in that suite. SkyCiv's strength is geographic and structural breadth: nine codes, multiple load types, multiple disciplines under one login.

WindLoadCalc (2002 in Naples, Florida; online 2006)

WindLoadCalc was created in Naples, Florida in 2002, calculating wind loads by hand for local architects and engineers in Collier County and the surrounding hurricane belt. It went online in 2006 as one of the very first wind load calculators on the open web — calculating wind loads online before SkyCiv existed as a company. The product has stayed deliberately narrow: ASCE 7-22 wind loads, with Florida Building Code jurisdictional handling that the company has been navigating since the 2001 FBC was the new edition.

The 24-year gap matters less than what each team chose to do with the time. SkyCiv built outward into a structural suite. WindLoadCalc built downward into the specifics of how wind loads are actually calculated, reviewed, and permitted in the United States — especially in Florida.

3. Feature comparison

The 15-row matrix.

Feature-by-feature. Gold rows mark places where WindLoadCalc is the better fit; blue rows mark places where SkyCiv is. Where the answer depends on user need, the row says so.

Feature WindLoadCalc SkyCiv Winner
Year established (firm) 2002 (Naples, FL) 2013 (Sydney, AU) WLC (11-year head start)
Year online 2006 2014 WLC
Codes/standards covered ASCE 7-22, FBC 2023 (incl. HVHZ) 9 codes incl. ASCE, AS/NZS, EN, NBCC SkyCiv (geographic breadth)
Load types Wind only Wind, snow, seismic, dead, live SkyCiv (multi-load)
FBC jurisdictional overrides (Miami-Dade 175, Broward/Collier 170) Yes — built into ZIP lookup No — returns ASCE 7-22 map value only WLC
Free tier limits Free public calculator, no solve cap 3 wind solves/week, 3 map lookups/day WLC
Roof shapes in free tier Single-component wall (Zones 4, 5) Gable + open pitched only WLC
C&C zone calculations Yes — Zones 4, 5 per ASCE 7-22 Ch 30 Yes (paid tiers) Tie (paid) / WLC (free)
Florida PE sign/seal service Yes — in-house FL P.E., ≤3 stories, FL only No (software only) WLC (scope-limited)
Global engineering software suite (FEA, design modules) No Yes — S3D, beam, plate, foundation SkyCiv
Pricing transparency Published monthly/annual on site Published, but free→paid limits not surfaced until you hit them WLC
Report format options Engineering Report + Architectural Schedule (real .xlsx for AutoCAD) PDF report WLC
Project save/share Yes — projects, team seats Yes (paid tiers) Tie
ASCE 7 edition focus ASCE 7-22 deep specialization ASCE 7-10/16/22 breadth Depends on user need
Coefficient transparency in output Every Kz, GCp, GCpi cited to ASCE section Number returned, derivation not shown WLC
4. Where SkyCiv legitimately wins

Things SkyCiv does that WindLoadCalc does not.

Not every project is a Florida wind load schedule. If your work looks like the items below, SkyCiv is the honest recommendation.

SkyCiv strengths

  • Multi-code geographic coverage. Nine codes including ASCE 7, AS/NZS 1170, EN 1991 (Eurocode), and NBCC. If you have projects outside the United States, WindLoadCalc cannot help — SkyCiv probably can.
  • Multi-load combination engine. Wind plus snow plus seismic plus dead plus live in one project file, with the load combinations that go with them. WindLoadCalc handles wind only.
  • Structural design suite. S3D 3D structural modeling, beam analysis, plate analysis, foundation design, integrated load generators. Wind is one input to a much larger workflow.
  • ASCE 7 edition breadth. Supports ASCE 7-10 and 7-16 in addition to 7-22 — useful for projects in jurisdictions that have not yet adopted the 2022 edition. WindLoadCalc focuses on 7-22.
  • Established global brand. Larger marketing presence and a wider third-party knowledge base. If you want a tool your firm has likely already heard of, that is real.

When SkyCiv is the right call

  • You are an integrated structural engineer. Your deliverable is a structural model, not a wind load report. Wind is one input among many.
  • You work in multiple countries. US plus Canada plus EU. WindLoadCalc is US-only and has no plans to add Eurocode or NBCC.
  • You need snow or seismic alongside wind. Load combinations matter more to you than depth on any single load type.
  • You are already in the SkyCiv ecosystem. S3D users get value out of using the matched wind tool, even if it lacks Florida-specific overrides.
5. Where WindLoadCalc legitimately wins

Things WindLoadCalc does that SkyCiv does not.

When the project is a US wind load — particularly a Florida HVHZ wind load — the calculus reverses.

WindLoadCalc strengths

  • Florida Building Code R301.2(7) overrides built in. Miami-Dade returns 175 mph for Risk Cat II. Broward returns 170 mph. Collier returns 170 mph. These supersede the ASCE 7-22 map value and are what plan reviewers actually check against. SkyCiv returns the ASCE map value at the ZIP centroid, which is below the legally enforceable value in those counties.
  • Truly free public calculator. No signup, no email gate, no per-week solve meter. Our free wind load calculator runs the same ASCE 7-22 + FBC engine the paid product uses.
  • Coefficient transparency. Every Kz, Kzt, Kd, Ke, GCp, and GCpi is cited to its ASCE section in the report output. You can hand the report to a peer reviewer without follow-up emails.
  • Real .xlsx Architectural Schedule. Window and door schedules export to a real Excel file that drops into AutoCAD. Not a PDF you have to retype.
  • In-house Florida PE sign-and-seal. For Florida residential projects up to three stories, our in-house Florida-licensed Professional Engineer signs and seals the report. (Out-of-state PE stamps not offered.)
  • 24 years of FBC navigation. WindLoadCalc has been calculating to the FBC since the 2001 edition — seven editions of Florida code change handled in production.

When WindLoadCalc is the right call

  • You permit work in Florida. Especially Miami-Dade, Broward, or Collier, where the FBC override is the difference between an approved and a rejected submission.
  • Your deliverable is the wind load report. Not a structural model — the report itself, with PE sign-and-seal where applicable.
  • You do window and door schedules. Where the .xlsx output for AutoCAD saves you the retyping step.
  • You want every coefficient defensible. Peer reviewers and plan examiners get the source citation in the report, not a black-box number.
6. Same address, two answers

Killer evidence: Miami-Dade, side-by-side.

The single clearest reason to know the difference. Identical project, identical inputs, two correct answers that mean different things to a plan reviewer.

The scenario

1234 Brickell Ave, Miami FL 33129
Single-family residence · 2 stories · Risk Cat II · Exposure C · 25 ft mean roof height · 6/12 gable
SkyCiv Free Wind Calculator
169mph
Source: ASCE 7-22 Figure 26.5-1 basic wind speed map value at the project ZIP centroid.
WindLoadCalc Free Calculator
175mph
Source: Florida Building Code R301.2(7) jurisdictional minimum for Miami-Dade County, Risk Category II.
"Both tools are correct for what they're calculating. SkyCiv returns the ASCE 7-22 standard value. WindLoadCalc applies the Florida Building Code jurisdictional minimum that a Miami-Dade permit reviewer will check against."

On a 25-ft single-family residence, the gap between 169 mph and 175 mph translates to roughly a 7% higher design pressure on every exterior wall and roof component — because velocity pressure scales with the square of wind speed. That is the difference between a glazing schedule that passes review and one that gets returned with a red mark. The number is not what a calculator should round off in a Florida coastal county.

7. Free-tier reality check

What each tool actually gives you for $0.

Both products have free entry points. The shape of those entry points is very different.

WindLoadCalc — free public calculator

$0 · no signup · no rate meter
  • Unlimited solves (no per-week, per-day, or lifetime cap)
  • ASCE 7-22 + Florida Building Code engine
  • Single wall component (Zones 4, 5) with positive and negative design pressure
  • Every coefficient cited to ASCE section in the on-page output
  • All 4 Risk Categories, all 4 enclosure classifications, exposures B/C/D
  • 33,783 US ZIP code lookup with FBC overrides for Miami-Dade, Broward, Collier
  • No email gate — load the page, get an answer

SkyCiv — free wind load calculator

$0 · signup required · metered
  • Publicly stated free-tier limits: 3 wind solves per week, 3 map lookups per day
  • ASCE 7-10/16/22 engine, plus the additional codes in their suite
  • Roof shapes in the free tier limited to gable plus open pitched (per SkyCiv's documentation)
  • PDF report output
  • ASCE 7-22 standard map value — no FBC jurisdictional overrides applied
  • Account required to save or revisit projects
Verified note: SkyCiv's free-tier limits cited above reflect publicly available SkyCiv documentation as of 2026-05-24. Free-tier specifics on third-party products do change — refer to skyciv.com/pricing/ for the current values directly from SkyCiv.
8. Pricing transparency

Pricing, side-by-side.

Both products publish paid pricing on their respective sites. We are linking out instead of restating — published prices change, and the source of truth is each vendor's own pricing page.

SkyCiv

SkyCiv's paid plans are published at skyciv.com/pricing/. Plans bundle the wind load calculator with the rest of the SkyCiv structural suite (S3D, beam, plate, foundation, etc.), so the cost reflects access to the full suite rather than the wind tool in isolation. Free-tier limits are not surfaced on the calculator page itself — you typically learn the cap when you hit it.

WindLoadCalc

WindLoadCalc Pro pricing is published at windloadcalc.com/calc-landing.html, with monthly and annual options and a 7-day free trial of the full product. There is no separate enterprise tier and no per-user metering inside a subscription; team seats are included at the published tier prices. The free public calculator remains free permanently and is not a trial.

We deliberately do not characterize SkyCiv as "expensive" or "cheap." That is a judgment that depends on whether you actually use the parts of the SkyCiv suite you are paying for. If you only use the wind tool, the per-feature cost is one thing; if you use S3D, beam, plate, and foundation alongside it, the per-feature cost is very different.
9. Migration notes

Switching from SkyCiv to WindLoadCalc.

If you have decided the Florida-specific or wind-only workflow fits you better, here is what changes.

What carries over directly

What changes in the output

What you give up

Practical first project

The fastest way to evaluate the switch is to re-run a recent Florida project on the WindLoadCalc free tool and compare the design pressure against your existing SkyCiv output. If your project is in a county WindLoadCalc covers with an FBC override, you will see the difference immediately. If your project is outside Florida, the design pressure will match within rounding (both tools are reading the same ASCE 7-22 map).

Calculating wind loads since 2002, online since 2006.

One of the very first wind load calculators on the web · 11-year firm head start over SkyCiv (2013) · In-house FL-licensed P.E. reviews jurisdictional overrides

10. Frequently asked

Common questions about WindLoadCalc vs SkyCiv.

There is a fully free public calculator at windloadcalc.com/free-wind-load-calculator.html with no signup and no rate meter. It returns the design pressure for one wall component with every coefficient cited to ASCE 7-22. For multi-component schedules, MWFRS, all six roof shapes, Excel export, project saving, and team seats, the paid subscription is required (pricing published on the Pro landing page). The free tool is a slice of the paid product, not a trial that expires.
SkyCiv returns the ASCE 7-22 basic wind speed at the map value. That is the correct standards value. It does not apply the Florida Building Code R301.2(7) jurisdictional minimums that supersede the ASCE map value in Miami-Dade (175 mph for Risk Cat II), Broward (170 mph), and Collier (170 mph). For a permit submission in those counties, the plan reviewer checks against the FBC value, not the ASCE map value. SkyCiv is not claiming to apply FBC overrides — the tool is doing what it says: returning the ASCE standard.
Both numbers are correct for what each tool is calculating. SkyCiv returns the ASCE 7-22 standard map value at the project ZIP centroid (approximately 169–170 mph for the Miami area depending on exact location). WindLoadCalc applies the Florida Building Code R301.2(7) jurisdictional minimum that legally supersedes the ASCE map value inside Miami-Dade county (175 mph for Risk Cat II). The FBC value is the one a Miami-Dade plan reviewer will check against on a permit submission, so it is the practically useful number for a Florida HVHZ project.
ASCE 7-22 is a national consensus standard (Minimum Design Loads and Associated Criteria for Buildings and Other Structures, 2022 edition) published by the American Society of Civil Engineers. The Florida Building Code is the legally adopted state code; the 8th Edition (2023) adopts ASCE 7-22 by reference and then amends specific values, including the R301.2(7) county wind speed table that raises wind speeds in Miami-Dade, Broward, and Collier above the ASCE 7-22 map values. ASCE 7 is a standard; FBC and IBC are codes. The code wins when they disagree.
Yes. The free calculator has no signup, no email gate, and no per-week or per-day solve limit. You enter a ZIP and component dimensions and you get the design pressure with every coefficient cited. The paid Pro subscription adds multi-component schedules, MWFRS calculations, all six roof shapes, Excel export, PE-stampable PDFs, and project save.
No. WindLoadCalc is a wind load specialist. SkyCiv's load tools cover wind, snow, seismic, dead, and live load combinations within a broader structural engineering software suite that includes FEA, beam, plate, foundation, and 3D structural design (S3D). If you need a multi-load combination engine inside a single integrated structural design tool, SkyCiv is the better fit. If you do wind load work specifically and want depth on ASCE 7-22 plus Florida Building Code, WindLoadCalc is purpose-built for that workflow.
SkyCiv covers nine codes including ASCE 7, AS/NZS 1170 (Australia/New Zealand), EN 1991 (Eurocode), and NBCC (Canada). WindLoadCalc is ASCE 7-22 and Florida Building Code only. For international wind load work outside the United States, SkyCiv's geographic breadth is the practical advantage. WindLoadCalc has no plans to add non-US codes in the near term.
The free tool solves one wall component at a time (Zones 4 and 5) with the ASCE 7-22 + FBC engine and shows every coefficient cited. The Pro subscription adds: multi-component window/door schedules across an entire project, MWFRS (Main Wind Force Resisting System) calculations, all six C&C roof shapes, Architectural Schedule export to real .xlsx for AutoCAD, Engineering Report PDF, project save and team seats, and Florida PE sign-and-seal service (in-house Florida-licensed P.E., max 3 stories, Florida projects only).
11. See for yourself

Run the same ZIP through both tools.

The fastest comparison is the one you do yourself. Try the WindLoadCalc free tool with one of your real Florida projects — or any US ZIP — and see what comes back.

Try WindLoadCalc's free calculator.

No signup. No rate meter. Same ASCE 7-22 + Florida Building Code engine the paid product uses. The ZIP-based wind speed lookup takes about eight seconds to give you a design pressure with every coefficient cited.

Open the free calculator → See the Pro version
Comparison accurate as of 2026-05-24, based on publicly available SkyCiv documentation.   "SkyCiv" is a trademark of SkyCiv Engineering Pty Ltd, referenced here for comparison purposes (nominative fair use).   WindLoadCalc is not affiliated with, endorsed by, or sponsored by SkyCiv.