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Free, privacy-focused unit converters and calculators. Switch between units and transform your data instantly. All processing happens locally on your computer. No data uploaded. Ever.
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ConvertersTemperature Converter
Convert between Celsius, Fahrenheit, and Kelvin
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📏
ConvertersLength Converter
Convert between meters, feet, miles, and more
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ConvertersWeight Converter
Convert between kilograms, pounds, ounces
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MathematicsUnit Circle Visualizer
Interactive trigonometric unit circle tool
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📐
MathematicsMatrix Calculator
Calculate determinants and solve 2×2, 3×3 matrices
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ConvertersTime Converter
Convert between seconds, minutes, hours, days
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