What does the Weight and Mass Converter work out?

Convert kilograms, pounds, ounces, stones and tonnes. It is one of the Unit Converters tools on Mondo Knows.

How is the Weight and Mass Converter calculated?

Strictly this is mass, but everybody calls it weight, so here it is with both names. Handy for luggage limits, gym plates and recipes that switch between grams and ounces halfway through. The maths is short enough to check by hand: Every unit is defined by how many base units it is worth, so the conversion is value x factor(from) / factor(to).

Do I need to sign up, and is my data stored?

No sign-up, and nothing you type is sent anywhere. The calculation runs in your own browser, so the figures stay on your device and the page works offline once loaded.

Mondo Knows Tools

Weight and Mass Converter

Convert kilograms, pounds, ounces, stones and tonnes. Use the free weight and mass converter below to get an instant answer, with the formula shown so you can check the maths and trust the result. Free, private, and no sign-up.

Value

Unit you have

Unit for the big answer

Mondo says

1 kg =

2.20462

Microgram (µg)1,000,000,000

Milligram (mg)1,000,000

Gram (g)1,000

Kilogram (kg)1

Metric tonne (t)0.001

Ounce (oz)35.274

Pound (lb)2.20462

Stone (st)0.157473

US hundredweight (cwt)0.0220462

US ton (ton)0.00110231

UK ton (UK t)0.000984207

Carat (ct)5,000

Grain (gr)15,432.4

13 units. The bold row is the unit you picked for the big answer.

How it works

Strictly this is mass, but everybody calls it weight, so here it is with both names. Handy for luggage limits, gym plates and recipes that switch between grams and ounces halfway through.

The formula

Every unit is defined by how many base units it is worth, so the conversion is value x factor(from) / factor(to).

Weight and Mass Converter: common questions

What does the Weight and Mass Converter work out?: Convert kilograms, pounds, ounces, stones and tonnes. It is one of the Unit Converters tools on Mondo Knows.
How is the Weight and Mass Converter calculated?: Strictly this is mass, but everybody calls it weight, so here it is with both names. Handy for luggage limits, gym plates and recipes that switch between grams and ounces halfway through. The maths is short enough to check by hand: Every unit is defined by how many base units it is worth, so the conversion is value x factor(from) / factor(to).
Do I need to sign up, and is my data stored?: No sign-up, and nothing you type is sent anywhere. The calculation runs in your own browser, so the figures stay on your device and the page works offline once loaded.

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Estimates for general guidance only. This is not financial, medical or legal advice. Everything runs in your browser and nothing you type is stored.