Weight & Mass Converter

Convert between kilograms, pounds, ounces, grams, stones, and more — free, instant weight conversion tool for cooking, fitness, and science.

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Technical Audit

This utility is a high-performance node optimized for modern browser environments. All data processing is executed client-side, ensuring zero knowledge transfer to external servers.

Scientific mass conversion
KG to Pounds and reverse
Kitchen and lab unit support
Instant streaming results

System FAQ

How many pounds are in a kilogram?

1 kilogram = 2.20462 pounds. To convert kg to lbs, multiply by 2.205. To convert lbs to kg, divide by 2.205 (or multiply by 0.4536).

How many grams are in an ounce?

1 ounce (avoirdupois) = 28.3495 grams. To convert oz to grams, multiply by 28.35. Note: a troy ounce (used for precious metals) = 31.1035 grams.

How do I convert my weight from kg to stone and pounds?

First convert kg to lbs (multiply by 2.205). Then divide by 14 to get stones (the remainder is pounds). Example: 70 kg = 154.3 lbs = 11 stone 0.3 lbs ≈ 11 stone.

What is the difference between mass and weight?

Mass is the amount of matter in an object (measured in kg or grams) and stays constant everywhere. Weight is the force of gravity acting on that mass (measured in Newtons) and varies by location. In everyday use, both terms are used interchangeably.

How many milligrams in a gram?

1 gram = 1,000 milligrams. 1 kilogram = 1,000,000 milligrams. Milligrams are used for medication dosages, nutritional supplements, and precision chemistry.