Weight Converter
Convert between weight units.
Convert between weight units.
This free Weight Converter from KX Toolkit is part of our all-in-one online toolkit. It runs entirely in your browser, so your data never leaves your device for client-side operations. 100% free, forever - no paywall, no credit card, no trial.
How to use the Weight Converter
- Pick the unit you have and the unit you want.
- Enter the value.
- Read the converted value - most tools update as you type.
- Use the swap button to reverse the direction if needed.
What you can do with the Weight Converter
- Convert recipe ingredients between metric and imperial.
- Translate engineering specs across systems.
- Check shipping weights and dimensions before ordering.
- Quick travel conversions for distance, speed and currency.
Why use KX Toolkit's Weight Converter
- Browser-based: Works on Windows, macOS, Linux, iOS and Android - no install, no extension.
- Privacy-first: Client-side tools never upload your data; server-side tools delete files right after processing.
- Mobile-friendly: Full feature parity on phones and tablets - not a stripped-down view.
- Fast: Optimised for instant feedback. No artificial waiting screens, no email-gated downloads.
- One hub for everything: 300+ tools across SEO, text, image, PDF, code, color, calculators and more - skip switching between sites.
Tips for the best results
For very large or very small numbers, use the scientific-notation option - it avoids floating-point rounding errors.
Related Unit Converter Tools
If you find this tool useful, explore the full Unit Converter Tools collection or browse our complete tool directory. KX Toolkit is built for marketers, developers, designers, students and anyone who needs a quick utility without signing up for yet another SaaS.
How do I convert kilograms to pounds?
Multiply kilograms by 2.20462 to get pounds. So 70 kg equals about 154.3 lb. The exact factor is 1 kg = 2.2046226218... lb. Going the other way, divide pounds by 2.20462 or multiply by 0.453592. This is the most common weight conversion between metric (used worldwide) and imperial (used in the US) systems.
What is the difference between mass and weight?
Mass is the amount of matter in an object and is measured in kilograms or pounds-mass. Weight is the force gravity exerts on that mass and is technically measured in newtons. In everyday usage, kilograms and pounds are treated as weight, even though they are really mass units. The converter follows everyday usage, which is fine for cooking, shipping, and personal weight.
How are stones used in the UK?
In the UK and Ireland, body weight is often expressed in stones and pounds. One stone equals 14 pounds or about 6.35 kg. So a person weighing 11 stone 4 pounds weighs 158 lb or 71.7 kg. The converter handles stones natively, which is helpful when reading British health information or ordering products from the UK.
What is a metric ton versus a US ton?
A metric ton (tonne) is exactly 1,000 kg, used worldwide. A US short ton is 2,000 lb, which equals 907.185 kg. A UK long ton is 2,240 lb or 1,016.05 kg. The three values differ by about 10 percent, which matters in shipping and freight. Always confirm which ton is meant when reading cargo or vehicle specifications.
How do I convert grams to ounces?
Divide grams by 28.3495 to get ounces, or multiply ounces by 28.3495 to get grams. So 100 g equals about 3.527 oz, which is why food labels often round to 3.5 oz. Note that fluid ounces are a volume unit and are not the same as ounces of weight, though they are loosely equal for water at room temperature.
What units does the converter cover?
Milligrams, grams, kilograms, metric tons, ounces, pounds, stones, US tons, UK tons, carats (for gemstones), and grains (for ammunition or pharmacy) are all supported. Enter a value in any unit and see the equivalents in all the others, which is useful for science, fitness, shipping, cooking, and international trade.
No reviews yet
Be the first to share your experience with the Weight Converter.