Weight Converter
Convert kilograms, pounds, ounces, grams and stones. Type a value and read the result.
Convert Units Instantly
Results follow standard formulas and are rounded for display.
About the Weight Converter
This page converts kilograms, pounds, ounces, grams and stones. Pick the unit you have and the unit you want, type a number and the answer updates straight away.
Use the other categories in the same tool for length, weight, temperature, volume, area, speed, time, pressure, energy and data. Conversions use standard factors shown to several decimals.
People look up weight conversions when they follow a recipe or manual written for another country, compare products listed in different units, check homework or plan a trip. A conversion is only as reliable as the unit names you pick, so read them carefully, keep the full result while you work and round at the end. The calculation happens in your browser as you type, so nothing you enter is sent anywhere.
How to use it
Pick the units. Choose From and To in the weight list.
Type a value. Decimals are fine.
Read the answer. Use the swap control to reverse it.
Convert 150 pounds to kilograms
Tips for good results
- Check the unit names carefully, because similar units differ by country.
- Round only at the end if you chain several conversions.
- Use the swap control to check your answer in reverse.
Common mistakes
- Picking the wrong unit variant, such as US and imperial.
- Rounding too early.
Common questions
Which weight units are included?
Common ones: kilograms, pounds, ounces, grams and stones.
How exact is the conversion?
It uses standard factors and shows several decimal places.
Can I convert in reverse?
Yes. Swap the units.
Is my input stored?
No.
More calculators
Results follow standard formulas and are rounded for display.
