This switches a weight between kilograms, grams, milligrams, pounds, ounces, and stone. It's for the everyday moments a weight shows up in an unfamiliar unit, a recipe in ounces when you think in grams, a shipping weight in pounds when your scale reads kilograms, a body weight tracked in stone.
How to use it
- Enter the weight you want to convert.
- Select the unit you're converting from.
- Select the unit you want the result in.
- Read the converted value below the dropdowns.
- Change the original value anytime and watch the result update.
When it helps
- Converting a recipe's ingredient weights between grams and ounces for an international recipe.
- Checking a parcel's shipping weight in pounds against a kilogram based courier limit.
- Tracking body weight consistently when a scale uses a different unit than you're used to.
- Comparing a product's listed weight across regions.
- Working out a dosage or portion weight that was originally given in an unfamiliar unit.
Good to know
- One kilogram is a bit over 2.2 pounds, a useful figure for quick mental checks.
- Stone is mostly used in the UK and Ireland for body weight. One stone equals 14 pounds.
- For cooking, small rounding differences rarely matter, but for medication or lab work, use the full precision shown.
- For cooking specifically, remember weight, like grams, is different from volume, like milliliters or cups. This tool only converts weight based units.
- When shipping internationally, check whether the destination country's customs form expects kilograms or pounds, since guessing wrong can cause a delay.
Mind the units
Ounces for weight and fluid ounces for volume are different things, and a pound of feathers weighs the same as a pound of lead. Check which unit a recipe or a shipping label is using.
Questions
Is a kilogram the same everywhere?
Yes, it's a standardized unit of mass defined the same way worldwide, so conversions are consistent no matter where you are.
What's the difference between weight and mass here?
This tool converts mass units the way they're used in everyday cooking and shipping contexts, where weight and mass are treated as interchangeable. The distinction mostly matters in physics.
Why does converting to milligrams give such a huge number?
Milligrams are tiny. There are a million of them in a kilogram, so converting an everyday weight into milligrams naturally produces a large number.
Why is stone used instead of pounds in some places?
Stone remains a traditional unit for body weight mainly in the UK and Ireland, even though those countries otherwise mostly use the metric system.
Can I convert milligrams straight to pounds?
Yes, pick milligrams as the source and pounds as the target, and the correct factor applies directly even across very different scales.
Is a pound of weight the same as a pound of force?
No, this converter deals with pounds as a unit of mass, which is what people mean in everyday use. Pound of force is a distinct, less commonly used engineering unit.