Is the Weight Converter free?

Yes — the Weight Converter is completely free, with no account, subscription, signup, or usage limits.

Is my data uploaded or stored?

No. The Weight Converter processes everything locally in your browser. Your input is never uploaded, saved, or shared with any server.

Does the Weight Converter work offline?

Yes. Once the page has finished loading, the Weight Converter works without an internet connection.

Which browsers does the Weight Converter work in?

The Weight Converter works in all modern browsers, including Chrome, Firefox, Safari, and Edge — no plugins or extensions needed.

What is the difference between a US ton and a UK ton?

A US (short) ton is 2,000 pounds (≈ 907 kg). A UK (long) ton is 2,240 pounds (≈ 1,016 kg). Both are supported in this free weight converter.

Weight Converter

Convert between kilograms, pounds, ounces, grams, and stone.

From

Milligram (mg)

0.001

Gram (g)

1 mg = 0.001 g

All Conversions for 1 mg

Gram	g	0.001
Kilogram	kg	0.000001
Tonne	t	1e-9
Ounce	oz	0.00003527399072
Pound	lb	0.00000220462442
Stone	st	1.574731e-7
US Ton	ton	1.102311e-9
UK Ton	ton	9.842035e-10
Carat	ct	0.005

Free browser-based tool · Runs 100% on your device · Last updated July 7, 2026

What is the Weight Converter?

The free Weight Converter handles 10 mass units: milligrams (mg), grams (g), kilograms (kg), metric tonnes (t), ounces (oz), pounds (lb), stone (st), US tons, UK (long) tons, and carats. Select your unit in the From dropdown, type the value, then pick the target unit in the To dropdown for an instant conversion. The All Conversions table renders all units at once so you can compare them side by side without repeated entries.

→ Converting kilograms to pounds for US-format recipe or fitness content
→ Converting ounces to grams for cooking and nutrition labels
→ Converting carats to grams for jewellery valuation
→ Converting short tons to metric tonnes for shipping or logistics

How to Use the Weight Converter

1 Open the From dropdown and choose your source unit (e.g. kg).
2 Type the weight in the value input.
3 Pick the target unit in the To dropdown (e.g. lb).
4 View the converted value instantly.
5 Use ⇄ Swap to flip the conversion direction.
6 See every unit in the All Conversions table below.

Key Features

⚖️
10 weight and mass units

Includes carat, stone, US ton, and UK ton alongside standard metric and imperial units.
⚡
Live conversion

No submit button — results update as you type.
⇄
Swap button

Instantly reverse the conversion direction.
📊
All Conversions table

See all 10 units at the same time for quick reference.
🆓
Free, no signup

Unlimited use with no account required.

Example Usage

Example Input

From: kg · Value: 70 · To: lb

Example Output

70 kg = 154.324 lb

Frequently Asked Questions about the Weight Converter

What is the Weight Converter?: The Weight Converter is a free online tool that lets you convert between kilograms, pounds, ounces, grams, and stone. It runs entirely in your browser, so there is nothing to install and nothing is uploaded to a server.
Is the Weight Converter free?: Yes — the Weight Converter is completely free, with no account, subscription, signup, or usage limits.
Is my data uploaded or stored?: No. The Weight Converter processes everything locally in your browser. Your input is never uploaded, saved, or shared with any server.
Does the Weight Converter work offline?: Yes. Once the page has finished loading, the Weight Converter works without an internet connection.
Which browsers does the Weight Converter work in?: The Weight Converter works in all modern browsers, including Chrome, Firefox, Safari, and Edge — no plugins or extensions needed.
What is the difference between a US ton and a UK ton?: A US (short) ton is 2,000 pounds (≈ 907 kg). A UK (long) ton is 2,240 pounds (≈ 1,016 kg). Both are supported in this free weight converter.