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Weight Converter - Convert Between kg, lb, oz, g, ton Online Free
Convert between kilograms, pounds, ounces, grams, tons, and stone with instant results.
What Is a Weight Converter?
A weight converter is a free tool that converts mass and weight measurements between different units instantly, whether you need kg to lb, oz to g, or tons to stone.
Supported Units
- Kilogram (kg) — SI base unit of mass. 1 kg = 1000 g.
- Gram (g) — One-thousandth of a kg.
- Pound (lb) — Imperial unit. 1 lb = 0.4536 kg.
- Ounce (oz) — 1/16 of a pound, ~28.35 g.
- Stone — 14 pounds. Used in UK.
- Metric Ton — 1000 kg.
How Does Weight Converter Work?
1 kg = 2.20462 lb, 1 lb = 16 oz, 1 lb = 453.592 g, 1 stone = 14 lb, 1 metric ton = 1000 kg.
How to Use This Tool
- Enter a numeric value — Type the measurement you want to convert.
- Select the source unit — Choose the unit you are converting from.
- Read the results — The tool instantly displays equivalents in every supported unit.
Try our Volume Converter or Area Converter.
Use Cases
Shopping
Compare product weights across countries.
Science
Convert sample masses for experiments.
Cooking
Convert recipe ingredients between weight units.
Fitness
Track body weight in different units.
Related Tools
- Volume Converter - Convert between liters, gallons, cups, and more.
- Speed Converter - Convert between km/h, mph, m/s, and knots.
- Digital Converter - Convert between bits, bytes, KB, MB, GB, and TB.
Privacy
All calculations are performed entirely in your browser using JavaScript. No data is sent to our servers. We do not store, log, or share any values you enter.
Weight conversions use standard factors. For extreme precision, consult NIST or BIPM data.
AI Overview
A weight converter converts mass between kg, lb, oz, g, tons, and stone using standard factors.
Quick Answers
How many lb in 1 kg?
A:Approx 2.20462 lb.
How many oz in 1 lb?
A:Exactly 16.
Metric ton vs US ton?
A:Metric: 1000 kg. US short: 2000 lb.
How to Use the Weight Converter - Convert Between kg, lb, oz, g, ton Online Free
- Type the weight value you want to convert into the input field. Decimals and large numbers are supported.
- Choose your starting unit from the dropdown menu - for example kilograms, pounds, or ounces.
- See the value converted into every supported unit instantly, including grams, stones, or metric tons.
Benefits
- Instant Multi-Unit Conversion
- Multiple Unit Systems
- 100% Free to Use
- Works on Any Device
Common Mistakes
- Confusing mass with weight
- Assuming 1 kg = exactly 2.2 lb (precise: 2.20462)
- Mixing up short/long/metric tons
- Stone only used for body weight in UK/Ireland
Professional Tips
- 1 oz of different ingredients has different volumes but same weight
- Use correct ton unit for destination country
- For medical dosing use kg not lb
- Gold uses troy oz (31.1035 g) not avoirdupois (28.3495 g)
Common Use Cases
Shopping and Retail
Compare product weights across countries.
Science
Convert sample masses for experiments.
Cooking
Convert recipe ingredients between weight units.
Fitness
Track body weight in different units.
Related Concepts
Kilogram (kg)
SI base unit of mass. 1 kg = 1000 g.
Gram (g)
One-thousandth of a kg.
Pound (lb)
Imperial unit. 1 lb = 0.4536 kg.
Ounce (oz)
1/16 of a pound, ~28.35 g.
Stone
14 pounds. Used in UK.
Metric Ton
1000 kg.
Frequently Asked Questions
References
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