Weight Converter
Convert between milligrams, grams, kilograms, metric tons, ounces, pounds, stones, and US tons.
About this Calculator
Convert between milligrams, grams, kilograms, metric tons, ounces, pounds, stones, and US tons.
Formula & Calculations
Formula
Result = Input value × (Conversion factor from unit / Conversion factor to unit), normalized to kilogramsWhere:
- mg=Milligrams (1 mg = 0.000001 kg)
- g=Grams (1 g = 0.001 kg)
- kg=Kilograms (base unit)
- t=Metric tons (1 t = 1000 kg)
- oz=Ounces (1 oz = 0.0283495 kg)
- lb=Pounds (1 lb = 0.453592 kg)
- st=Stones (1 st = 6.35029 kg)
- ust=US tons / short tons (1 ust = 907.185 kg)
Assumptions
- All conversions use standard international definitions.
- The kilogram is used as the intermediate base unit for all calculations.
- US ton refers to the short ton (2,000 lbs), not the metric ton.
Calculation Examples
Example 1
Inputs:150 pounds to kilograms
Result:68.0389 kg
150 × 0.453592 = 68.0389 kg.
Example 2
Inputs:1 metric ton to pounds
Result:2204.62 lbs
1 × 1000 ÷ 0.453592 = 2204.62 lbs.
Example 3
Inputs:12 stones to kilograms
Result:76.2035 kg
12 × 6.35029 = 76.2035 kg.
Frequently Asked Questions
What is the difference between metric ton and US ton?
A metric ton (tonne) is 1,000 kg (2,204.62 lbs). A US ton (short ton) is 2,000 lbs (907.185 kg). A UK ton (long ton) is 2,240 lbs but is not included in this calculator.
How many pounds are in a stone?
One stone equals exactly 14 pounds. Stones are primarily used for body weight measurement in the United Kingdom and Ireland.