Weight Calculator

Convert between different weight units including metric, imperial, troy, and specialized systems with comprehensive comparisons

Enter a weight value and select units to convert

Weight Value

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Reference weights for everyday objects

Paper Clip1 g

US Penny2.5 g

AA Battery23 g

Golf Ball45 g

Smartphone150 g

Apple (medium)182 g

Can of Soda375 g

Loaf of Bread680 g

Laptop2.5 kg

Gallon of Water3.78 kg

Bowling Ball7 kg

Average Adult70 kg

Motorcycle250 kg

Piano400 kg

Small Car1200 kg

Elephant5000 kg

• Base unit: Kilogram (kg)

• Decimal system (powers of 10)

• Used worldwide in science

• mg → g → kg → tonnes

• Base unit: Pound (lb)

• 16 ounces = 1 pound

• 14 pounds = 1 stone

• 2000 lbs = 1 US ton

• Used for precious metals

• 24 grains = 1 pennyweight

• 20 pennyweights = 1 troy ounce

• 12 troy ounces = 1 troy pound

• 1 kg ≈ 2.205 lbs

• 1 troy oz ≈ 31.1 grams

• 1 carat = 200 mg

• 1 stone = 14 lbs = 6.35 kg