This converter turns pounds into grains instantly, using the exact factor 1 pound = 7000 grains. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
Exactly 0.45359237 kilograms, the primary US unit of body and produce weight. The oldest English mass unit, now used for bullets, arrows and propellant charges.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
pounds- The amount you are converting, measured in pounds
7000- The exact number of grains in one pound
grains- The converted result
How it works, step by step
- Enter the number of pounds you want to convert.
- The value is multiplied by 7000, the exact conversion factor.
- The result is displayed in grains, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 pounds
Multiply 5 by 7000. That gives 35,000 grains. A quick sanity check: one pound is larger than one grain, so the number should get bigger — and it does.
Converting 72 pounds
72 × 7000 = 504,000 grains. Working backwards, 504,000 ÷ 7000 returns 72 pounds, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many grains are in one pound?
Exactly 7000. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert pounds to grains?
Grains = pounds × 7000. To reverse it, divide instead: pounds = grains ÷ 7000, which is the same as multiplying by 0.0001428571429.
Is the pound bigger than the grain?
Yes. One pound equals 7000 grains, so it is the larger unit.
Why does my answer differ slightly from other pounds to grains converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a pound?
Exactly 0.45359237 kilograms, the primary US unit of body and produce weight.
What is a grain?
The oldest English mass unit, now used for bullets, arrows and propellant charges.
Pounds to grains reference table
| Pounds | Grains |
|---|---|
| 0.5 lb | 3,500 gr |
| 1 lb | 7,000 gr |
| 2 lb | 14,000 gr |
| 3 lb | 21,000 gr |
| 5 lb | 35,000 gr |
| 10 lb | 70,000 gr |
| 15 lb | 105,000 gr |
| 20 lb | 140,000 gr |
| 25 lb | 175,000 gr |
| 50 lb | 350,000 gr |
| 75 lb | 525,000 gr |
| 100 lb | 700,000 gr |
| 250 lb | 1,750,000 gr |
| 500 lb | 3,500,000 gr |
| 1000 lb | 7,000,000 gr |
Exact factor: 1 pound = 7000 grains. Values rounded for display.