Precision Utility
Weight
Converter
Supported
7 Units
Results
Instant Convert
Convert between kilograms, pounds, stones, ounces, grams, milligrams and metric tonnes instantly. Enter a value, choose your units and see the result straight away. Built for everyday UK conversions.
Conversion Input
Converted Result
165.347 lb
Input Value
75
From Unit
Kilograms
To Unit
Pounds
Conversion Factor
2.20462
How the weight converter works
Enter the value you want to convert in the input field. Then choose the unit you're converting from and the unit you want to convert to. The result updates instantly as you type or change units.
All conversions run through kilograms as a base unit. Your input is first converted to kilograms, then from kilograms to the target unit. This two-step approach keeps every conversion accurate and consistent across all 7 supported units.
Use the swap button to quickly reverse the conversion direction. The converter handles metric units (kilograms, grams, milligrams, metric tonnes) and imperial units (pounds, ounces, stones).
What you need to know about weight units
The UK uses both metric and imperial weight measurements depending on context. Supermarkets price goods per kilogram, but many people still think in pounds and stones for body weight. Understanding both systems is essential for daily life.
Key conversion facts:
- 1 kilogram = 2.20462 pounds
- 1 stone = 14 pounds = 6.35029 kilograms
- 1 pound = 16 ounces = 0.453592 kilograms
- 1 ounce = 28.3495 grams
- 1 metric tonne = 1,000 kilograms
- 1 kilogram = 1,000 grams = 1,000,000 milligrams
The metric system's base-10 structure makes internal conversions simple. Imperial weight conversions require specific ratios (16 ounces per pound, 14 pounds per stone). This converter removes that hassle entirely.
Frequently asked questions
How many pounds are in a kilogram?
One kilogram equals approximately 2.20462 pounds. This is the internationally recognised conversion factor used in science, trade and everyday life.
How do I convert stones to kilograms?
Multiply the number of stones by 6.35029. For example, 10 stone equals approximately 63.5 kilograms. The stone is commonly used in the UK and Ireland to express body weight.
What is the difference between mass and weight?
Mass is the amount of matter in an object, measured in kilograms. Weight is the force of gravity acting on that mass. In everyday use the terms are interchangeable because gravity is roughly constant on Earth's surface.
How many grams are in an ounce?
One ounce (avoirdupois) equals approximately 28.3495 grams. This is the standard ounce used for general weighing. The troy ounce used for precious metals is slightly heavier at 31.1035 grams.
Why does the UK use stones for body weight?
The stone (14 pounds) has been used in the British Isles for centuries and remains the most common unit for personal body weight in everyday conversation. Medical records and official documents typically use kilograms, but most people still think in stones and pounds.
How accurate is this weight converter?
This converter uses internationally defined conversion factors and displays results up to 6 significant figures. All conversions pass through kilograms as the base unit, ensuring consistent accuracy across all 7 supported units.