Weight Converter Calculator
Free online Weight Converter to convert between kilograms, pounds, grams, ounces, stones, and tons.
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The Weight Converter instantly converts between kilograms, pounds, grams, ounces, stones, and tons. From a baking recipe in grams to a shipping label in pounds to body weight in stones, it gives you the exact equivalent in one click.
One Tool for Every Weight Unit
The world doesn't agree on weight units. Metric countries use grams and kilograms, the US uses pounds and ounces, the UK adds stones for body weight, and shipping throws in tons of three different definitions. This converter speaks all of them, so you never have to hunt for a factor or risk a manual slip.
How to Convert
- Enter the weight.
- Choose the from and to units.
- Read the precise result instantly.
Common Weight Conversions
| From | To | Equivalent |
|---|---|---|
| 1 kilogram | pounds | ≈ 2.205 lb |
| 1 ounce | grams | ≈ 28.35 g |
| 1 stone | kilograms | ≈ 6.35 kg |
| 1 pound | grams | ≈ 453.6 g |
Why Baking Demands Accuracy
Cooking is forgiving; baking is not. A recipe's ratios of flour, sugar, and fat depend on precise weights, and a recipe written in grams won't translate to a rough handful. Converting grams to ounces (or vice versa) exactly keeps your results consistent — which is why serious bakers weigh ingredients rather than measuring by volume.
The Three Different "Tons"
Watch out here. A US short ton is 2,000 lb, a UK long ton is 2,240 lb, and a metric tonne is 1,000 kg (about 2,205 lb). They're close enough to be confused but far enough apart to matter in freight and pricing, so always confirm which ton a quote or spec means before converting.
Who Uses a Weight Converter
- Cooks and bakers following international recipes.
- Shippers matching package weights to carrier units.
- Fitness fans tracking body weight across kg, lb, and stone.
- Travelers reading metric or imperial labels.
Accurate and Free
Every conversion uses exact factors at full precision, right in your browser. Convert as often as you like, free.
Frequently Asked Questions
How many pounds are in a kilogram?
One kilogram equals approximately 2.205 pounds. So 10 kg is about 22.05 lb. The converter applies the precise factor, which is handy for shipping, fitness, and travel between metric and imperial countries.
How do I convert grams to ounces?
Divide grams by about 28.35 to get ounces, since one ounce is roughly 28.35 grams. For example, 100 g is about 3.53 oz. This is a frequent need in cooking and baking recipes.
What is a stone in weight?
A stone is a British unit equal to 14 pounds, or about 6.35 kilograms. It's commonly used in the UK and Ireland to express body weight, so converting to kg or lb helps when following international fitness guidance.
What's the difference between mass and weight?
Strictly, mass is the amount of matter and weight is the force of gravity on it, but in everyday use the terms are interchangeable and these units measure mass. For practical conversions — cooking, shipping, fitness — the distinction doesn't change the numbers.
Are US and UK tons the same?
No. A US (short) ton is 2,000 pounds, a UK (long) ton is 2,240 pounds, and a metric tonne is 1,000 kilograms (about 2,205 pounds). They're close but not equal, so confirm which ton a figure refers to.
Why do recipes need weight conversion?
Recipes from different countries mix grams, ounces, and pounds. Converting to your preferred unit ensures accurate measurements, which matters most in baking where ratios are precise.
Is the conversion accurate?
Yes. It uses exact factors at full precision, so results are reliable for everything from gram-level baking to ton-level shipping.
Is this tool free?
Yes — free, instant, and unlimited, with no signup.