This converter turns grains into pounds instantly, using the exact factor 1 grain = 0.0001428571429 pounds. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
The oldest English mass unit, now used for bullets, arrows and propellant charges. Exactly 0.45359237 kilograms, the primary US unit of body and produce weight.
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
grains- The amount you are converting, measured in grains
0.0001428571429- The exact number of pounds in one grain
pounds- The converted result
How it works, step by step
- Enter the number of grains you want to convert.
- The value is multiplied by 0.0001428571429, the exact conversion factor.
- The result is displayed in pounds, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 grains
Multiply 5 by 0.00014285714. That gives 0.000714 pounds. A quick sanity check: one grain is smaller than one pound, so the number should get smaller — and it does.
Converting 72 grains
72 × 0.00014285714 = 0.010286 pounds. Working backwards, 0.010286 ÷ 0.00014285714 returns 72 grains, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many pounds are in one grain?
Exactly 0.0001428571429. 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 grains to pounds?
Pounds = grains × 0.0001428571429. To reverse it, divide instead: grains = pounds ÷ 0.0001428571429, which is the same as multiplying by 7000.
Is the grain bigger than the pound?
No. One grain is only 0.000142857 of a pound, so the pound is the larger unit.
Why does my answer differ slightly from other grains to pounds 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 grain?
The oldest English mass unit, now used for bullets, arrows and propellant charges.
What is a pound?
Exactly 0.45359237 kilograms, the primary US unit of body and produce weight.
Grains to pounds reference table
| Grains | Pounds |
|---|---|
| 0.5 gr | 0.000071 lb |
| 1 gr | 0.000143 lb |
| 2 gr | 0.000286 lb |
| 3 gr | 0.000429 lb |
| 5 gr | 0.000714 lb |
| 10 gr | 0.001429 lb |
| 15 gr | 0.002143 lb |
| 20 gr | 0.002857 lb |
| 25 gr | 0.003571 lb |
| 50 gr | 0.007143 lb |
| 75 gr | 0.010714 lb |
| 100 gr | 0.014286 lb |
| 250 gr | 0.035714 lb |
| 500 gr | 0.071429 lb |
| 1000 gr | 0.142857 lb |
Exact factor: 1 grain = 0.0001428571429 pounds. Values rounded for display.