Weight and Mass Converter
Convert weight and mass between kilograms, grams, tonnes, pounds, ounces and stone using standard conversion factors.
Your results
Calculation breakdown
- Conversion
- Result = value × (from unit's kilograms) ÷ (to unit's kilograms)
Worked example
Converting 70 kilograms to pounds gives approximately 154.32 pounds, using the exact factor of 1 pound = 0.45359237 kilograms.
Assumptions
- Treats weight and mass equivalently, as is standard for everyday conversions.
How this calculator works
This calculator converts a weight or mass value between common metric units such as kilograms, grams and tonnes, and imperial units such as pounds, ounces and stone. Metric units are shown first to reflect standard Australian usage, with imperial units useful for older recipes, luggage limits or historical records.
Frequently asked questions
What is the difference between weight and mass?
Technically mass measures matter and weight measures gravitational force, but in everyday and this calculator's use they are treated the same.
How many kilograms are in a stone?
One stone equals approximately 6.35029 kilograms, a unit still commonly used in Australia for describing a person's body weight.
Can this convert tonnes to kilograms?
Yes, select tonnes as the source unit and kilograms as the target to see the equivalent value.