Convert between metric and imperial weight and mass units
Weight and mass are often used interchangeably in everyday language. In science, mass describes the amount of matter in an object, while weight refers to the force of gravity acting on that mass. For everyday conversions, people usually search for weight units such as grams, kilograms, pounds, ounces, stones, and tons.
This weight converter is useful for cooking, fitness, body weight tracking, shipping, science, and international product comparisons between metric and imperial units.
This free weight converter makes it easy to convert between grams, kilograms, milligrams, ounces, pounds, stones, metric tons, and other common mass units. It is useful for cooking, body weight tracking, shopping, shipping, exercise, and education.
Whether the goal is to convert kilograms to pounds, pounds to kilograms, grams to ounces, or stones to pounds, this page provides both an instant calculator and useful reference material.
Some of the most common searches involve simple weight comparisons between metric and imperial systems.
To convert kilograms to pounds, multiply the number of kilograms by 2.20462. For example, 10 kilograms equals about 22.05 pounds. This is a common conversion for body weight, luggage, and product weights.
To convert pounds to kilograms, multiply the number of pounds by 0.453592. For example, 100 pounds equals about 45.36 kilograms. This is useful when comparing fitness targets, food quantities, or shipping weights across countries.
To convert pounds to ounces, multiply by 16. For example, 5 pounds equals 80 ounces. This conversion is often used for recipes, food packaging, and smaller retail measurements.
The metric system is based on powers of ten, which makes it simple to convert between milligrams, grams, kilograms, and metric tons. The imperial system uses ounces, pounds, stones, and different kinds of tons.
| Metric | Imperial |
|---|---|
| 1 milligram | 0.000035 ounces |
| 1 gram | 0.035274 ounces |
| 1 kilogram | 2.20462 pounds |
| 1 metric ton | 2,204.62 pounds |
| 1 ounce | 28.3495 grams |
| 1 pound | 453.592 grams |
| 1 stone | 6.35029 kilograms |
Large-weight conversions can be confusing because there are different types of tons:
When converting tons, it is important to know which system is being used.
A reliable weight converter saves time and avoids mistakes, especially when switching between metric and imperial systems in recipes, fitness plans, shipping labels, or academic work.
Weight conversion is part of everyday life, from reading food labels to comparing luggage allowances and tracking fitness goals. This weight converter is designed to make those conversions quick, accurate, and easy to understand.
Use the calculator above to convert weight units instantly and explore more free tools across ConvertUnitsNow.com.