Skip to content

Weight Converter

Free weight & mass converter — kilograms, pounds, ounces, stones, grams, tonnes. Metric ↔ imperial, accurate to 15 digits, runs in your browser.

Runs in your browserUpdated Apr 26, 2026

Weight converter

All weight conversions

Milligram
45359237 mg
Gram
45359.237 g
Kilogram
45.359237 kg
Tonne
0.045359237 t
Ounce
1600 oz
Stone
7.142857143 st

Frequently asked questions

How do I convert kg to lbs?

Multiply kilograms by 2.20462. Enter your value, pick pounds as the target unit and the result appears instantly.

Is this weight or mass?

Technically it's mass, but in everyday use the units (kg, lb, oz) refer to mass under standard gravity — which is what you weigh on a scale.

Why is 1 stone 14 pounds?

The British stone has historically been standardised at 14 lb (6.35 kg). Older regional stones varied from 4 to 32 lb.

What's the difference between a metric tonne and a US ton?

A metric tonne is exactly 1,000 kg. A US (short) ton is 2,000 lb (≈ 907 kg) and a UK (long) ton is 2,240 lb (≈ 1,016 kg).

Is my data uploaded?

No. Every calculation runs in your browser. Nothing is sent to any server.

People also search for