Mass/Weight Reference Sheet

Metric (SI)

• 1 microgram (µg) = 1×10⁻⁶ gram (g)
• 1 milligram (mg) = 0.001 gram (g)
• 1 gram (g) = 1,000 milligrams (mg)
• 1 kilogram (kg) = 1,000 grams (g)
• 1 metric ton (t) = 1,000 kilograms (kg)

U.S. / Imperial

• 1 ounce (oz) = 1/16 pound (lb)
• 1 pound (lb) = 16 ounces (oz)
• 1 stone (st, UK) = 14 pounds (lb)
• 1 short ton (US ton) = 2,000 lb
• 1 long ton (UK ton) = 2,240 lb

U.S. to Metric

• 1 ounce (oz) ≈ 28.3495 grams (g)
• 1 pound (lb) ≈ 453.592 grams (g)
• 1 short ton (US ton) ≈ 907.185 kilograms (kg)

Metric to U.S.

• 1 gram (g) ≈ 0.035274 ounces (oz)
• 1 kilogram (kg) ≈ 2.20462 pounds (lb)
• 1 metric ton (t) ≈ 2,204.62 pounds (lb) ≈ 1.10231 US tons

Quick benchmarks

• A paper clip ≈ 1 g
• AA battery ≈ 24 g
• Medium apple ≈ 180 g
• Baseball ≈ 145 g
• 1 pound (lb) ≈ 454 g

Metric prefixes (mass — based on gram)