Weight Converter
Convert kilograms, pounds, ounces, grams, stones, and more instantly.
Weight Converter
Convert mass and weight units across kilograms, pounds, ounces, stones, grams, and tons.
This calculator auto-updates when values change.
Quick conversions
Conversion logic
The input is converted to the base unit (kilogram), then converted into the selected output unit. This avoids rounding drift when switching between units.
Converted Value
2.20462262
lb
1 kg equals 2.20462262 lb.
Base value
1 kilogram
Multi-unit breakdown
Kilograms
1 kg
Pounds
2.20462262 lb
Ounces
35.27396195 oz
Grams
1,000 g
Stones
0.15747304 st
Metric Tonnes
0.001 t
Milligrams
1,000,000 mg
US Tons
0.00110231 US ton
About This Weight Converter
This weight converter converts common mass units used in everyday life, fitness, food, shipping, and study. It is built to make common conversions like kilograms to pounds, pounds to kilograms, ounces to grams, and stones to pounds quick and readable.
The calculator converts through kilograms internally, then displays the selected unit and a full breakdown. That makes it easier to compare a value across metric, imperial, and US customary units without running several separate conversions.
For casual use, the displayed rounded values are usually enough. For scientific work, medication, commercial shipping, or regulated packaging, always check the required precision and official rounding rules before relying on a converted value.
How to Use This Calculator
- 1
Enter the weight or mass
Type the value you want to convert in the From field.
- 2
Select the current unit
Choose kilograms, pounds, ounces, grams, stones, tonnes, milligrams, or US tons.
- 3
Select the target unit
Pick the unit you want to convert into and read the highlighted result.
- 4
Try a common preset
Use quick conversions such as kg to pounds, pounds to kg, ounces to grams, or stones to pounds.
- 5
Compare all supported units
Use the breakdown grid to see the same value across every supported weight and mass unit.
Frequently Asked Questions
Which weight and mass units are supported?v
The converter supports kilograms, pounds, ounces, grams, stones, metric tonnes, milligrams, and US tons. These cover most body weight, shipping, cooking, scientific, and everyday mass conversions.
Is weight the same as mass?v
In everyday use, people often say weight when they mean mass. This converter uses fixed mass conversion factors, such as kilograms to pounds. It does not calculate gravitational force in newtons.
How are pounds and stones related?v
One stone equals 14 pounds. This is commonly used for body weight in the UK and Ireland, while pounds and kilograms are more common in many other contexts.
Why are US tons and metric tonnes different?v
A metric tonne is exactly 1,000 kilograms. A US short ton is 2,000 pounds, which is about 907.18474 kilograms. The converter keeps these units separate so they are not confused.
Can I use this for recipes or shipping?v
Yes, it works well for quick recipe, parcel, luggage, fitness, and shipping conversions. For commercial shipping or regulated labels, confirm the required rounding and unit standard.