Weight & Mass Converter
Convert between weight and mass units: kilograms, pounds, ounces, grams, tonnes, US tons, stones, and milligrams. Common for cooking, shipping, fitness tracking, international recipes, and science.
Common Conversions
1 kilogram = 2.20462 pounds. 1 pound = 16 ounces = 453.592 grams. 1 stone = 14 pounds = 6.35029 kg. 1 US ton = 2000 pounds = 907.185 kg. 1 metric tonne = 1000 kg = 2204.62 pounds.
Weight vs Mass
Technically weight depends on gravity while mass does not — but in everyday use they're interchangeable. This tool converts mass (the scientific quantity that pounds and kilograms both represent).
FAQ
US ton vs metric tonne?
A US ton is 2000 lbs (907 kg). A metric tonne is 1000 kg (2205 lbs). A UK long ton is 2240 lbs (1016 kg) — we use US ton here.
Try Also
More: Length Converter, Cooking Converter.
Why Use This Weight Converter?
The Weight Converter runs entirely in your browser, which means three things matter for you. First, it's instant — there's no server round-trip, no upload, no waiting on someone else's queue. Second, it's private — nothing you enter ever leaves your device, which makes it safe for sensitive numbers, draft copy, or files you don't want sitting on a third party's servers. Third, it's free forever — no signup, no email capture, no "basic vs. pro" upsell. Open the page, get the answer, close the tab.
Common Use Cases
- Everyday lookups when you need a fast, reliable answer without installing an app
- Cross-checking results from another tool or spreadsheet when accuracy matters
- Quick reference during work calls, school assignments, or planning sessions
- Sharing the link with a colleague or friend who needs the same answer
- Bookmarking for repeat tasks that come up regularly throughout the week
Privacy & How Your Data Is Handled
Every calculation and every transformation in the Weight Converter runs locally in your browser using standard JavaScript. We don't upload your input to any server, we don't log it, and we don't pass it to a third-party API. The tool works the same whether you're on a fast home connection or completely offline once the page has loaded. If you want to verify this for yourself, open your browser's network tab and run the tool — you won't see any outbound request carrying your data.
Frequently Asked Questions
Is the Weight Converter really free?
Yes. Every tool on ClickSolveTools is free with no signup, no email capture, no paywalled "pro" features, and no usage limits. We don't sell your data and we don't run ads inside the tool itself.
Does the Weight Converter work on my phone?
Yes. The Weight Converter is mobile-first and works in any modern browser on iOS, Android, Windows, Mac, Linux, and ChromeOS. Inputs are touch-friendly, the layout is fully responsive, and nothing requires a desktop-only feature to function.
Do I need to sign up or install anything?
No. There's no account, no extension, no app to download. Open the page in any browser, use the tool, and close the tab when you're done. Your usage isn't tied to a profile.
Is my data safe?
Everything runs locally in your browser. We don't transmit your inputs, calculations, or files to any server. You can use the tool with full confidence even for sensitive information.