Convert Grains (gr) to Stones (st)
1 grain equals 1.02041 × 10⁻⁵ stones.
Grain to Stone Converter
How to Convert Grain to Stone
1 grain = 1.02041 × 10-5 stones
Stone = Grain × 1.02041 × 10-5
Example: 1 gr × 1.02041 × 10-5 = 1.02041 × 10-5 st
Reverse Conversion
To convert stones back to grains:
- Remember, 1 stone equals 98000 grains.
- To convert 1.02041 × 10-5 st to gr, multiply
1.02041 × 10-5 x 98000, resulting in1 gr.
Common Grain to Stone Conversions
| Grain | Stone | Actions |
|---|---|---|
| 50 grains | 0.000510204 stones | |
| 100 grains | 0.00102041 stones | |
| 500 grains | 0.00510204 stones | |
| 1000 grains | 0.0102041 stones |
Grains to stones Conversion Table
Reference table with common grains to stones conversions. All values calculated with high precision.
Grains to Stones Table
10 to 50000
Grains to Stones Table
100000 to 1 × 1010
Stones to Grains Table
1 to 100000
Definition of Grain
- Definition
- The grain (gr) is one of the oldest units of mass, historically based on the weight of a single grain of cereal. It is still used in ballistics and jewelry.
The grain provides very fine mass resolution compared to larger imperial units. - Exact factor
- 1 gr = 64.79891 mg
- Examples
- • 7000 gr = 1 lb
• 500 gr ≈ 32.4 g
Definition of Stone
- Definition
- The stone (st) is a traditional British unit of mass, primarily used for expressing human body weight in the UK and Ireland.
Although not part of the SI system, it remains culturally relevant and widely understood in health-related contexts. - Exact factor
- 1 st = 14 lb = 6.35029318 kg
- Examples
- • 11 st ≈ 69.85 kg
• 12 st 7 lb ≈ 79.38 kg
About the Stone
Facts & Uses
- Traditional British and Irish unit equal to exactly 14 avoirdupois pounds = 6.35029318 kg. Still in everyday use in the UK and Ireland for body weight.
- Used in healthcare records, weight-loss programs, and sports broadcasting (boxing, rugby, horse racing) — typically reported as "X stone Y pounds" (e.g., 12 st 7 lb).
- Largely obsolete in commerce — UK retail and food packaging have used metric units (kg) since the 1995/2000 EU directives — but persists culturally for personal weight.
- Not used in the United States or in continental Europe; American expatriates in the UK often find the unit confusing on their first GP visit.
Curiosities
- The name comes literally from the practice of using stones as standard weights in medieval markets. The value varied wildly by region and commodity — from 4 lb (in some wool trades) to 32 lb (for cheese in Northumberland) — until the 1835 Weights and Measures Act fixed it at 14 lb.
- A typical adult man in the UK weighs around 11–14 stone (70–89 kg); a typical woman 9–12 stone (57–76 kg).
- The plural is irregular: "He weighs 12 stone" (singular form even for plural quantity) — a quirk of British English.
- 1 st = 14 lb = exactly 6.35029318 kg ≈ 224 oz.
Sources
Frequently Asked Questions
How many stones are in one grain?
One grain equals 1.02041 × 10-5 stones. To convert, multiply the grain value by 1.02041 × 10-5. For the reverse, divide the stone value by 1.02041 × 10-5 (or multiply by 98000).
What is 0.24 grains in stones?
0.24 grains = 2.449 × 10-6 stones. This is one of the most commonly searched conversions for this pair.
How precise is the grain-to-stone conversion?
The factor 1.02041 × 10-5 is accurate to 6 significant figures, derived from international measurement standards. Our calculator uses full precision internally.
Looking for the reverse? Convert Stone to Grain
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- Kg to Stones and Pounds — UK body weight format
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