Cloudy Calculator

Cloudy Calculator – Updated & Revived

The beloved Cloudy Calculator Chrome extension is back — rebuilt from scratch to work entirely offline, with improved unit handling, better plural recognition, and fixes for mixed-unit arithmetic. This update preserves the original’s simplicity and power while modernizing its internals for accuracy and reliability.

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About this Update • Based on the original Cloudy Calculator, now fully offline • 100% pass rate on all 395 comprehensive tests from comprehensive_tests.html • Enhanced unit parsing: recognizes plurals and aliases (liters, lbs, meters, hours, etc.) • No dependency on online services for math or conversions • Runs locally — no data ever leaves your browser

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Features • Mixed-unit math: 10 lb - 2 kg in g, 2 cups + 500 ml in liters • Unit conversions for length, area, volume, mass, time, speed • Temperature conversions: 32 F to C, 100 C to K • Number base conversions: binary, octal, hex, decimal • Math functions: sin, cos, log, sqrt, pow, factorial, … • Constants: pi, e, c (speed of light), phi, … • Plural & alias handling: litres, lbs, meters, minutes, …

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Testing

This version has been verified with the original 395-case comprehensive test suite, achieving a 100% success rate.

Tests cover: • All supported units & aliases • Temperature & currency conversions • Mixed-unit arithmetic • Base number conversions • Math function evaluations • Constant resolution • Robust error handling for invalid inputs

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Privacy • No tracking • No telemetry • No analytics • All calculations happen entirely in your browser • No user data is ever stored or transmitted

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Whether you’re doing quick everyday calculations, converting obscure units, or running scientific computations, Cloudy Calculator – Updated & Revived delivers instant, accurate results with zero privacy trade-offs.