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93 stair-only calculators. No logins, no unrelated tools, no black-box math — every formula shows its work and cites the exact code section behind it.

JSON Formatter & Validator
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Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | mystaircalculator.com | developertools.tech |
| Pricing | ||
| Company | Startup from the United States · 250 - 499 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Free Riser Height Calculator from mystaircalculator.com — enter your total rise and step count to get exact riser height, checked live against the IRC §R311.7.5.1 maximum of 7.75". Formula shown on the same page, no login or signup required. Part of a 93-calculator library built exclusively for...
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