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Household / Measurements

Everyday Measurements

Convert length, mass, temperature and volume in your browser. Choose both units explicitly; nothing is uploaded or saved as a history.

Choose a measurement

Use a decimal dot, no commas or unit text. Scientific notation is accepted. Nonzero input magnitudes: 0.000000000001 to 1 trillion. Length, mass and volume must be nonnegative; temperatures may be negative down to absolute zero. Results are limited to magnitude 1 quadrillion.

Apply a conversion to see the result.

Display uses at most 10 significant digits and may use scientific notation. Swapping uses the unrounded result. Extra digits do not improve the accuracy of your original measurement.

Check the unit system

Mass ounces (oz) are different from fluid ounces (volume). This tool does not convert mass to volume. US liquid and imperial gallons, pints and fluid ounces differ; each choice names its system. US customary cups are 8 US fluid ounces; metric recipes may use 250 mL cups. Select milliliters for those. US nutrition-label cups/fluid ounces and US dry measures are not offered.

Temperature conversions are absolute readings, not temperature differences. Length uses the international foot, not the former US survey foot. Mass uses ordinary avoirdupois pounds/ounces, not troy units.

For everyday household estimates. No currencies, medical dosing or engineering certification. Constants are based on NIST conversion tables (new tab); no source or destination is fetched during conversion. Clipboard use happens only when you choose Copy result. If copying is unavailable, select the result and use your keyboard.

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