Measurement Category Hub
Weight & Mass Converters & Calculators
Convert mass and weight measurements including milligrams, grams, kilograms, metric tons, ounces, pounds, stones, and tons. Use our universal interactive weight & mass calculator below or select one of our dedicated conversion shortcuts.
Weight & Mass
(mg)
Example: 500 mg
(g)
e.g. 0.5g
Standard: 1 g = 0.001 kg ≈ 0.03527 oz
Enter any number above to convert Milligrams to Grams. Click (i) for brief unit info.
Popular Weight & Mass Conversions
4 dedicated toolsKilograms to Pounds Converter
Convert mass and body weight from kilograms (kg) to pounds (lbs) with exact avoirdupois ratios.
pounds = kilograms ÷ 0.45359237
Pounds to Kilograms Converter
Convert weight from imperial pounds (lbs) to metric kilograms (kg).
kilograms = pounds × 0.45359237
Grams to Ounces Converter
Convert mass from grams (g) to avoirdupois ounces (oz) for culinary recipes and postal shipments.
ounces = grams ÷ 28.349523125
Ounces to Grams Converter
Convert ounces (oz) to metric grams (g) for cooking, coffee brewing, and dietary tracking.
grams = ounces × 28.349523125
Supported Weight & Mass Units & Standards
| Unit Name | Symbol | Type / System | Relative Value |
|---|---|---|---|
Milligram | mg | Derived Unit | 1 mg = 0.000001 base |
Gram | g | Derived Unit | 1 g = 0.001 base |
KilogramBase SI | kg | SI Standard Unit | 1 kg = 1 base |
Metric Ton (Tonne) | t | Derived Unit | 1 t = 1000 base |
Ounce | oz | Derived Unit | 1 oz = 0.028349523125 base |
Pound | lb | Derived Unit | 1 lb = 0.45359237 base |
Stone | st | Derived Unit | 1 st = 6.35029318 base |
US Short Ton | ton (US) | Derived Unit | 1 ton (US) = 907.18474 base |
Imperial Long Ton | ton (UK) | Derived Unit | 1 ton (UK) = 1016.0469088 base |
Weight & Mass FAQs
In the International System of Units (SI) or standard physical conventions, the base reference unit is Kilogram. All linear conversions within this category are mathematically derived from this base factor.