Convert Pounds to Grains
1 pound is 7,000 gr. One pound is exactly 7000 grains.
One pound is 7000 grains. To convert pounds to grains, multiply by 7000; to go the other way, divide by 7000 or multiply by 1.4286 × 10^-4. The factor is exact rather than rounded: it follows from NIST Handbook 44. Exactly 0.45359237 kilograms by international agreement, and sixteen ounces.
Factor checked against the defining standard · How we check
- Pounds × 7000
1 * 70007,000 gr
1 pound in every weight unit
| Unit | Value | Exact factor |
|---|---|---|
| ounces | 16 oz | × 16 |
| pounds (as entered) | 1 lb | — |
| stone | 0.07142857143 st | × 0.0714285714286 |
| US tons | 0.0005 ton | × 0.0005 |
| micrograms | 453,592,370 mcg | × 453,592,370 |
| milligrams | 453,592.37 mg | × 453,592.37 |
| centigrams | 45,359.237 cg | × 45,359.237 |
| grams | 453.59237 g | × 453.59237 |
| kilograms | 0.45359237 kg | × 0.45359237 |
| slugs | 0.03108095017 slug | × 0.0310809501716 |
| tonnes | 0.00045359237 t | × 0.00045359237 |
| carats | 2,267.96185 ct | × 2,267.96185 |
| troy ounces | 14.58333333 ozt | × 14.5833333333 |
| grains | 7,000 gr | × 7,000 |
| long tons | 0.0004464285714 LT | × 0.000446428571429 |
Factors are entered by hand from NIST Handbook 44 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert pounds to grains? The converter and the working
- 1.Take the measurement in pounds.
- 2.Multiply by 7000 — that is how many grains fit in one pound.
- 3.To go back the other way, divide by 7000, or multiply by 1.4286 × 10^-4.
Worked example: 25 pounds to grains
- Formula
- lb × 7000 = gr
- Arithmetic
- 25 × 7000 = 175,000 gr
- Answer
- 25 lb = 175,000 gr
The factor is exact, so this figure is exact too — only the display is rounded.
Pounds to grains conversion table
| Pounds | Grains |
|---|---|
| 1 lb | 7,000 gr |
| 2 lb | 14,000 gr |
| 3 lb | 21,000 gr |
| 4 lb | 28,000 gr |
| 5 lb | 35,000 gr |
| 6 lb | 42,000 gr |
| 7 lb | 49,000 gr |
| 8 lb | 56,000 gr |
| 9 lb | 63,000 gr |
| 10 lb | 70,000 gr |
| 12 lb | 84,000 gr |
| 15 lb | 105,000 gr |
| 20 lb | 140,000 gr |
| 25 lb | 175,000 gr |
| 50 lb | 350,000 gr |
| 100 lb | 700,000 gr |
| 200 lb | 1,400,000 gr |
| 300 lb | 2,100,000 gr |
| 500 lb | 3,500,000 gr |
| 1000 lb | 7,000,000 gr |
| 2000 lb | 14,000,000 gr |
| 5000 lb | 35,000,000 gr |
| 10000 lb | 70,000,000 gr |
What is a pound?
Exactly 0.45359237 kilograms by international agreement, and sixteen ounces.
What is a grain?
Exactly 64.79891 milligrams, the unit both the avoirdupois and troy systems are built from. Bullet weights and powder charges are still measured in it, and so are some pharmaceutical doses.
How many grains are in a pound?
One pound is 7000 grains, exactly. Going the other way, one grain is 1.4286 × 10^-4 pounds. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every weight unit here
The whole group — 15 units with their symbols and the size of each one in kilograms — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a pound.
Cite this page
- APA
- Rule Calculator. (2026). Convert Pounds to grains. Rule Calculator. https://rulecalculators.com/convert/pound-to-grain
- MLA
- "Convert Pounds to grains." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/pound-to-grain.
- Chicago
- Rule Calculator. "Convert Pounds to grains." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/pound-to-grain.
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Questions people actually ask
- How many grains are in a pound?
- 7000. Exactly 64.79891 milligrams, the unit both the avoirdupois and troy systems are built from. Bullet weights and powder charges are still measured in it, and so are some pharmaceutical doses.
- How do I convert grains back to pounds?
- Divide by 7000, or multiply by 1.4286 × 10^-4 — they are the same operation.
Other weight conversions
Grains to pounds — the same conversion the other way.