Gram to Grain Converter
Weight · unit-converter
Convert Gram to Grain with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use gram-based factors (international avoirdupois pound and metric definitions). The full Weight Converter also includes carat, grain, and US/UK hundredweight.
Calculator
From: Gram (g)
To: Grain (gr)
About Gram
The gram is one thousandth of a kilogram. Recipes, lab work, and small masses typically use grams.
About Grain
The grain is 1/7000 of a pound (exactly 64.79891 mg). It is used in ballistics, pharmacy, and precious-metal contexts.
How to convert grams to grains
1 gram is equal to 15.43235835294143 grain:
1 g = (1 g ÷ 0.06479891 g) gr = 15.43235835294143 gr
Each gram is defined as 1 g and each grain as 0.06479891 g, so one g equals 1 ÷ 0.06479891 gr = 15.43235835294143 gr.
Let w(g) be the numeric value of the same mass measured in Gram (g), and w(gr) the value in Grain (gr). Then:
w(gr) = w(g) × (1 / 0.06479891)
Equivalently, divide by how many g fit into one gr (grams per gr divided by grams per g):
w(gr) = w(g) ÷ 0.06479891
Or: grain = gram ÷ 0.06479891
Examples
Example #1: Convert 20 g to grain
20 g = 20 g × (1/0.06479891) gr = 308.647167059 gr
20 g = 20 g ÷ 0.06479891 = 308.647167059 gr
Example #2: Convert 50 g to grain
50 g = 50 g × (1/0.06479891) gr = 771.617917647 gr
50 g = 50 g ÷ 0.06479891 = 771.617917647 gr
Summary
To convert Gram to Grain, multiply the value in g by the ratio of grams per g divided by grams per gr. Equivalently: value_gr = value_g × (1 / 0.06479891). Numerically, 1 g equals 15.43235835294143 gr.
Relationship context
You are converting between metric (SI) (Grams) and imperial / UK (stone, long ton, pound, ounce) (Grains). Metric mass is decimal from the gram; US and imperial masses use pounds and ounces with fixed definitions relative to the kilogram. The numeric factor used here is 1.543236e+1.
Conversion tables
| Gram (g) | Grain (gr) |
|---|---|
| 0.1 | 1.5432358353 |
| 1 | 15.4323583529 |
| 2 | 30.8647167059 |
| 3 | 46.2970750588 |
| 4 | 61.7294334118 |
| 5 | 77.1617917647 |
| 6 | 92.5941501176 |
| 7 | 108.026508471 |
| 8 | 123.458866824 |
| 9 | 138.891225176 |
| Gram (g) | Grain (gr) |
|---|---|
| 10 | 154.323583529 |
| 20 | 308.647167059 |
| 30 | 462.970750588 |
| 40 | 617.294334118 |
| 50 | 771.617917647 |
| 60 | 925.941501176 |
| 70 | 1,080.26508471 |
| 80 | 1,234.58866824 |
| 90 | 1,388.91225176 |
| 100 | 1,543.23583529 |