Weight Calculator
Convert between different weight and mass units including metric, imperial, and specialized measurements with real-world comparisons
Weight & Mass Converter
Enter any positive value
Input Weight
150 lb
Conversions
Metric System
6.80e+7
Milligrams
68,039
Grams
68.0388
Kilograms
0.068039
Metric Tons
Imperial System
2,400
Ounces
150
Pounds
10.7143
Stones
0.075
US Tons
Specialized Units
1.05e+6
Grains
340,194
Carats
2,187
Troy Ounces
43,750
Pennyweights
Real-World Comparisons
About 1 large person
What is Weight Calculator?
The weight calculator converts between different units of mass and weight, providing accurate conversions across metric, imperial, and specialized measurement systems. It's useful for cooking, science, jewelry, shipping, and everyday calculations.
Unit Categories
Metric System
- • Milligrams (mg) - Very small masses
- • Grams (g) - Standard metric unit
- • Kilograms (kg) - Base SI unit for mass
- • Metric Tons - Large masses (1000 kg)
Imperial System
- • Ounces (oz) - Small measurements
- • Pounds (lb) - Common US unit
- • Stones (st) - British unit (14 lbs)
- • Tons - Large measurements
Specialized Units
- • Grains (gr) - Bullets, powder
- • Carats (ct) - Gemstones, jewelry
- • Troy Ounces - Precious metals
- • Pennyweights - Jewelry making
Common Conversion Factors
Metric Conversions:
- 1 kg = 1,000 g
- 1 g = 1,000 mg
- 1 tonne = 1,000 kg
Imperial Conversions:
- 1 lb = 16 oz
- 1 stone = 14 lb
- 1 US ton = 2,000 lb
Practical Applications
- Cooking and baking recipe conversions
- Scientific measurements and laboratory work
- Jewelry and precious metal calculations
- Shipping and postal weight requirements
- Fitness and health tracking
- International trade and commerce
- Engineering and construction calculations
- Medication dosage conversions
Weight vs. Mass
Mass is the amount of matter in an object and remains constant everywhere.Weight is the force exerted by gravity on that mass and varies with gravitational field strength. This calculator converts between mass units, but the terms "weight" and "mass" are often used interchangeably in everyday contexts.
FAQ - Weight Calculator
Mass is the amount of matter in an object and remains constant everywhere. Weight is the gravitational force acting on that mass and varies depending on location (Earth, moon, etc.). In everyday use, the terms are often used interchangeably.