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Weight Converter with Log History

Convert between kilograms, pounds, ounces, grams, metric tons, and stones with browser-based conversion history

Weight
Mass
Kilogram
Pound
Ounce
Unit Conversion
Enter any positive weight value for conversion.

No conversion history yet.

Successfully converted weights will appear here.

Quick Reference

Common Weight Conversions

1 Kilogram2.20462 lbs / 1,000 g
1 Pound0.453592 kg / 16 oz
1 Ounce28.3495 g / 0.0625 lbs
1 Stone6.35029 kg / 14 lbs
1 Metric Ton1,000 kg / 2,204.62 lbs

Conversion Formulas

1 kg = 2.20462 lbs
1 lbs = 0.453592 kg
1 kg = 1,000 g
1 oz = 28.3495 g
1 st = 6.35029 kg

Sample Weights

About Weight Converter

Weight Units

Weight (or mass) can be measured in different units. This tool supports six major units: Kilogram (kg) - the SI base unit, Pound (lbs) - used in the US, Ounce (oz) - for smaller weights, Gram (g) - metric unit for small items, Metric Ton (t) - for heavy weights, and Stone (st) - used in the UK for body weight.

Common Use Cases

  • Cooking & Baking: Convert recipe ingredients between metric and imperial
  • Fitness & Health: Track body weight in different units (kg, lbs, stones)
  • Shipping & Logistics: Convert package weights for international shipping
  • Science & Lab Work: Convert between grams, kilograms, and metric tons
  • Travel: Understand weight limits in different countries

History Feature

Successfully converted weights are automatically saved to your browser's local storage. You can revisit previous conversions, compare different weights, and manage your conversion history.

Privacy & Security

All weight conversions happen in your browser. No data is sent to our servers. History is stored locally in your browser and can be cleared at any time.

Frequently Asked Questions (FAQ)

What weight units can I convert between?
This tool supports conversion between six major weight units: Kilograms (kg), Pounds (lbs), Ounces (oz), Grams (g), Metric Tons (t), and Stones (st). You can convert from any unit to all others simultaneously.
How do I convert kilograms to pounds?
To convert kilograms to pounds, multiply by 2.20462. For example, 1 kg = 2.20462 lbs, and 10 kg = 22.0462 lbs. Simply enter your kilogram value and select kilograms as the input unit.
What is the difference between mass and weight?
Mass is the amount of matter in an object and stays constant everywhere, while weight is the force of gravity on that mass and can vary. This tool converts mass units, but we commonly call it "weight conversion" in everyday use.
How many grams are in a kilogram?
There are 1,000 grams in 1 kilogram. The metric system uses base-10 conversions, making it easy to convert: 1 kg = 1,000 g, 1 g = 1,000 mg, and 1,000 kg = 1 metric ton.
Why would I use stones as a weight measurement?
Stones are commonly used in the United Kingdom and Ireland to measure body weight. One stone equals 14 pounds or approximately 6.35 kilograms. It provides a convenient middle ground between pounds and kilograms.
Is my conversion history secure?
Yes, all conversions happen locally in your browser. Your conversion history is stored only in your browser's local storage and is never sent to any servers.
How accurate are the conversions?
All conversions use internationally accepted conversion factors with floating-point precision. Results are displayed with 4 decimal places by default for high accuracy in scientific and professional applications.
Can I use this for cooking measurements?
Absolutely! This tool is perfect for converting recipe measurements between metric (grams, kilograms) and imperial (ounces, pounds) units. It helps when following recipes from different countries.