Productivity
freecalctools.net
Last updated 2026-07-05 · benchmark measured 2026-08-12 — deterministic & reproducible
Online calculator that finds the percentage increase between two numbers.
Is freecalctools.net production-ready?
Legit.Show scores freecalctools.net 76 out of 100 — the simple average of its 6 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on freecalctools.net (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Reliability; its weakest is Security. 6 of the seven frames returned a score; Accessibility was not measurable on this service and is recorded as null — not as zero. Every frame it averages is published with its evidence on the Legit.Show listing.
The 7 Frames
- Performance — 80/100
- Accessibility — not measurable on this service (null — not scored as 0)
- Security — 45/100
- Privacy — 75/100
- Reliability — 100/100
- Standards — 75/100
- Discoverability — 80/100
What we measured
- Security headers present: CSP.
- No HSTS.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 327 ms to first byte.
- Returns a proper 404 for unknown routes.
- 3 of 3 sampled routes reachable.
- Has a reachable privacy policy.
- Sets cookies / loads scripts with no consent prompt.
Who built it
FreeCalcTools
Who it's for
Students · Business owners · Investors · Employees · Accountants
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