Weight Converter Online — kg, lbs, Stone & Ounces Free
A weight converter online instantly converts values between kilograms, pounds, stone, grams, ounces, and metric tons. Whether you are following a recipe in imperial units, reading your weight in a system you are not used to, or working with international shipping weights, the converter gives you all equivalent values at once.
Weight Unit Conversion Factors
| From | To | Multiply by |
|---|---|---|
| Kilograms (kg) | Pounds (lb) | 2.20462 |
| Pounds (lb) | Kilograms (kg) | 0.453592 |
| Kilograms (kg) | Stone (st) | 0.157473 |
| Stone (st) | Kilograms (kg) | 6.35029 |
| Grams (g) | Ounces (oz) | 0.035274 |
| Ounces (oz) | Grams (g) | 28.3495 |
| Metric tons (t) | Pounds (lb) | 2204.62 |
How to Use the Weight Converter
- Enter the weight value. Type the number you want to convert. Decimals are supported.
- Select the source unit. Choose the unit you are converting from — kg, lb, stone, grams, ounces, or others.
- Read the converted values. All equivalent weights in other units appear instantly.
Common Weight Reference Points
| Reference | Kilograms | Pounds | Stone & lbs |
|---|---|---|---|
| 1 kg (bag of sugar) | 1 kg | 2.2 lb | 0 st 2.2 lb |
| Average adult (male) | ~84 kg | ~185 lb | ~13 st 3 lb |
| Average adult (female) | ~71 kg | ~156 lb | ~11 st 2 lb |
| Airline carry-on limit (typical) | 7–10 kg | 15–22 lb | 1 st 1–8 lb |
| Airline checked bag limit (typical) | 23 kg | 50.7 lb | 3 st 8.7 lb |
Mass vs Weight
Strictly speaking, kilograms measure mass (the amount of matter), while the Newton is the SI unit of force/weight. In everyday usage — body weight, food quantities, shipping — "weight" and "mass" are used interchangeably, and kg is universally used in both contexts. The distinction matters in physics and engineering: a 70 kg person has a weight of about 686 Newtons on Earth but only 113 Newtons on the Moon, while their mass remains 70 kg everywhere.
Weight in BMI and Health Calculations
If you need your weight in kilograms for a health calculation — BMI, TDEE, medication dosing — use this converter to translate your scale reading first. The BMI calculator and TDEE calculator both accept metric and imperial inputs directly, so you can enter your weight in either kg or lb without pre-converting.
Common Questions
How many pounds in a stone?
One stone equals exactly 14 pounds. Stone is commonly used in the UK and Ireland for body weight (but not generally for other purposes). If you weigh 11 stone 7 lb, that is (11 × 14) + 7 = 161 lb, or about 73 kg.
What is the difference between a metric ton and a short ton?
A metric ton (tonne) equals exactly 1,000 kg (about 2,204 lb). A short ton (used in the US) equals 2,000 lb (about 907 kg). A long ton (used historically in the UK) equals 2,240 lb (about 1,016 kg). When international shipping documents say "ton," they almost always mean metric tons.
Convert Weight Now
Enter any weight in kg, lb, stone, grams, or ounces and instantly see all equivalent values — free, no signup, instant results.
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