Convert Pounds to Grams Instantly
Use this Pounds to Grams converter to change mass from pounds (lb) into grams (g) instantly. One international avoirdupois pound equals exactly 453.59237 grams. Enter any decimal pound value, use the reverse grams-to-pounds converter, combine pounds with extra ounces, or compare one mass across kilograms, ounces, metric tons and U.S. short tons.
Convert pounds to grams, reverse grams to pounds, combine pounds with extra ounces, or convert one mass across pounds, grams, kilograms, ounces and tons.
Enter pounds to calculate the exact equivalent in grams and other common mass units.
Decimals are supported, including partial pounds.
Reverse the conversion by dividing grams by exactly 453.59237.
Combine pounds and ounces, then convert the total mass to grams, kilograms and decimal pounds.
Convert one mass value across pounds, grams, kilograms, ounces, metric tons and U.S. short tons.
To convert pounds to grams, multiply the number of pounds by 453.59237. The international avoirdupois pound is defined as exactly 0.45359237 kilogram, and one kilogram contains exactly 1,000 grams. Therefore, one pound equals exactly 453.59237 grams.
Example: 2.5 lb × 453.59237 = 1,133.980925 g.
The same factor works for whole, decimal and fractional pound values. One half pound equals 226.796185 grams, one quarter pound equals 113.3980925 grams and 10 pounds equals 4,535.9237 grams.
1 international avoirdupois pound equals exactly 453.59237 grams.
Pounds become grams by multiplying by 453.59237.
Divide grams by 453.59237 to return to pounds.
Compare pounds with grams, kilograms, ounces and tons.
Use this lb to g chart for common mass values. Each result follows the exact 453.59237-gram conversion factor.
| Pounds (lb) | Grams (g) | Kilograms (kg) | Ounces (oz) |
|---|---|---|---|
| 0.01 lb | 4.535924 g | 0.004536 kg | 0.16 oz |
| 0.05 lb | 22.679619 g | 0.022680 kg | 0.8 oz |
| 0.10 lb | 45.359237 g | 0.045359 kg | 1.6 oz |
| 0.25 lb | 113.398093 g | 0.113398 kg | 4 oz |
| 0.50 lb | 226.796185 g | 0.226796 kg | 8 oz |
| 0.75 lb | 340.194278 g | 0.340194 kg | 12 oz |
| 1 lb | 453.592370 g | 0.453592 kg | 16 oz |
| 1.5 lb | 680.388555 g | 0.680389 kg | 24 oz |
| 2 lb | 907.184740 g | 0.907185 kg | 32 oz |
| 2.5 lb | 1,133.980925 g | 1.133981 kg | 40 oz |
| 5 lb | 2,267.961850 g | 2.267962 kg | 80 oz |
| 10 lb | 4,535.923700 g | 4.535924 kg | 160 oz |
| 25 lb | 11,339.809250 g | 11.339809 kg | 400 oz |
| 50 lb | 22,679.618500 g | 22.679619 kg | 800 oz |
| 100 lb | 45,359.237000 g | 45.359237 kg | 1,600 oz |
0.2 × 453.59237 = 90.718474 g.
0.8 × 453.59237 = 362.873896 g.
1.25 × 453.59237 = 566.990463 g.
3 × 453.59237 = 1,360.77711 g.
12 × 453.59237 = 5,443.10844 g.
The international avoirdupois pound is defined as exactly 0.45359237 kilogram. Since the kilogram-to-gram relationship is exactly 1 kilogram = 1,000 grams, multiplying 0.45359237 by 1,000 gives 453.59237 grams per pound.
This exact relationship is why a pounds-to-grams calculator can produce precise results without estimating the conversion factor. Rounding is a display choice, not a requirement of the conversion itself.
The pound is a larger avoirdupois mass unit commonly used in the United States for body weight, shipping, food and materials.
The gram is a metric mass unit convenient for food, laboratory work, products, small parts and precise measurements.
The same mass can be expressed as one pound or exactly 453.59237 grams.
For the reverse conversion, divide grams by 453.59237. For example, 1,000 grams divided by 453.59237 is approximately 2.20462262 pounds. A 500-gram mass is approximately 1.10231131 pounds.
Example: 907.18474 g ÷ 453.59237 = 2 lb.
Pounds to grams conversion is useful in cooking, food packaging, shipping, product specifications, manufacturing, science, exercise equipment, pet food, medical-device documentation, materials handling and any situation where a U.S. customary mass must be compared with a metric mass.
For example, a 5-pound package weighs 2,267.96185 grams. A 0.75-pound ingredient weighs 340.1942775 grams. Converting first allows values from different unit systems to be combined consistently.
One pound contains exactly 16 avoirdupois ounces. Since one pound equals 453.59237 grams, one ounce equals 28.349523125 grams. One kilogram equals 1,000 grams and is approximately 2.20462262 pounds.
| Mass Unit | Pounds | Ounces | Grams | Kilograms |
|---|---|---|---|---|
| 1 ounce | 0.0625 lb | 1 oz | 28.349523 g | 0.028350 kg |
| 1 pound | 1 lb | 16 oz | 453.59237 g | 0.453592 kg |
| 500 grams | 1.102311 lb | 17.636981 oz | 500 g | 0.5 kg |
| 1 kilogram | 2.204623 lb | 35.273962 oz | 1,000 g | 1 kg |
| 10 pounds | 10 lb | 160 oz | 4,535.9237 g | 4.535924 kg |
For standardized unit definitions and conversion references, see the NIST SI Units – Mass resources.
454 g is a useful rounded estimate, but the exact international-pound factor is 453.59237 g.
One pound contains 16 ounces; ounces use a different gram conversion factor.
Pounds to grams uses a smaller target unit, so multiply by 453.59237.
Keep the exact factor through the calculation and round the final result only when needed.
This page converts mass units. It does not convert pound-force to newtons.
Common fractions of a pound have convenient gram equivalents. One quarter pound equals 113.3980925 grams, one half pound equals 226.796185 grams and three quarters of a pound equals 340.1942775 grams. An eighth of a pound equals 56.69904625 grams.
For less familiar fractions, convert the fraction to decimal pounds and multiply by 453.59237. The mixed pounds-and-ounces calculator above is also useful when a scale or label reports values such as 2 lb 8 oz rather than a single decimal-pound number.
For additional mass conversions, use the Ounces to Pounds converter, Kilograms to Pounds converter, Kilograms to Grams converter, Grams to Kilograms converter, Tons to Pounds converter, or Pounds to Kilograms converter. Using a dedicated mass converter helps keep pound, ounce, gram and kilogram relationships consistent.
Quick answers about pounds, grams, ounces, kilograms and reverse mass conversion.