Weight Converter
Convert kg to lbs, grams to ounces, stones to kilograms, and more. Instant metric to imperial weight conversion.
Our free Weight Converter instantly converts between metric and imperial weight (mass) units: milligrams, grams, kilograms, metric tons, ounces, pounds, and stones. Use it for cooking (convert a European recipe from grams to ounces), fitness… Use the fields above to enter values and get an instant answer. All processing happens on your device.
About This Calculator
Our free Weight Converter instantly converts between metric and imperial weight (mass) units: milligrams, grams, kilograms, metric tons, ounces, pounds, and stones. Use it for cooking (convert a European recipe from grams to ounces), fitness tracking (convert your weight between kg and lbs), shipping (determine package weight in the required unit), science projects, or any situation where you need to switch between measurement systems. All conversion factors are internationally standardized for precision.
How It Works
Enter the weight value, select the source unit, and choose the target unit. The calculator multiplies by the standard conversion factor. Key factors: 1 kg = 2.20462 lbs, 1 pound = 453.592 grams, 1 ounce = 28.3495 grams, 1 stone = 6.35029 kg = 14 pounds, 1 metric ton = 1,000 kg. Results display with appropriate decimal precision for the unit.
How to Use
- Enter your values in the calculator fields above
- Click the calculate button or let the calculator auto-update
- Review your results instantly
- Adjust values as needed to see different scenarios
Frequently Asked Questions
How do I convert kilograms to pounds?
Multiply kilograms by 2.20462. For example, 75 kg x 2.20462 = 165.35 lbs. A quick mental shortcut: double the kg and add 10%. The converter gives you the exact result instantly.
How do I convert grams to ounces for cooking?
Divide grams by 28.3495. For example, 200 grams = 7.05 ounces. This is essential when adapting European or Asian recipes that use grams to US recipes that use ounces and cups.
What is a stone and where is it used?
A stone equals 14 pounds or about 6.35 kg. It is commonly used in the UK and Ireland for measuring body weight. For example, a person weighing 154 lbs weighs 11 stone.
What is the difference between mass and weight?
In everyday language they mean the same thing. Scientifically, mass is the amount of matter (measured in kg, constant everywhere) and weight is the gravitational force on that mass (measured in newtons, varies by location). For all practical earth-based conversions, this distinction does not matter.
Is this tool accurate for commercial shipping?
Yes. The conversion factors are exact international definitions. For shipping, ensure you use the unit your carrier requires (usually kg or lbs) and round according to their rules (typically up to the nearest 0.5 kg or 1 lb).
Why Use Our Free Weight Converter Online?
Our Weight Converter uses standard formulas and works in your browser—no install or sign-up. Use it for homework, travel, or everyday conversions. Results are instant and we don't collect your inputs. Explore our other math and unit converters from the link below.