Utilities · US market
US Customary ↔ Metric Unit Converter
Quick, accurate conversions for shipping, recipes, and DIY — inches, pounds, and °F to metric and back.
US ↔ metric converter
Upgrade — Saved conversion sets and printable sheets.
UpgradeFAQ
Which units are supported?
Length, weight, volume, and temperature — focused on US customary ↔ metric pairs people actually need for shipping, cooking, and DIY.
Are conversions exact?
We use common exact factors (e.g. 1 in = 25.4 mm). Temperature uses standard formulas. Intermediate rounding may apply in the display.
Is anything uploaded?
No — pure client-side math.
Upgrade?
Saved conversion sets and printable cheat-sheets when checkout is available.
Why this tool?
US shoppers and sellers constantly translate inches/pounds/°F for international SKUs and recipes.