en-US · browser-local
Measurement conversion without a calculator dump.
UnitToolMage is a fast, accurate, browser-local measurement conversion and measurement-reference workbench. It owns unit conversion. It is not a calculator dump, an energy-cost product, a calendar product, or a developer-transform product.
Category converters, not hundreds of doorway pair pages. US customary and Imperial units stay labeled. Temperature is affine. Cooking volume is never sold as a universal weight.
Certified tools
Length Converter
Convert meters, feet, inches, miles, and other length units with exact SI-defined factors.
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Weight and Mass Converter
Convert kilograms, pounds, ounces, and tons using the avoirdupois definitions.
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Temperature Converter
Convert Celsius, Fahrenheit, Kelvin, and Rankine with affine formulas, not a simple multiplier.
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Area Converter
Convert square meters, square feet, acres, and hectares from exact length definitions.
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Volume Converter
Convert liters, cubic meters, US gallons, and Imperial gallons without mixing the two gallon systems.
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Speed Converter
Convert meters per second, kilometers per hour, miles per hour, and knots.
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Data Storage Converter
Convert bytes using SI decimal prefixes and IEC binary prefixes as separate systems.
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Cooking Measurement Converter
Convert US, Imperial, and metric cooking volumes. This is not a universal volume-to-weight tool.
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Time Unit Converter
Convert seconds, minutes, hours, days, and weeks as duration units. Not a calendar-date calculator.
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