Stone to Grain Converter
Convert Stone (st) to Grain (gr) instantly. 1 st = 98,000 gr.
Mass Converter
26 units available
1 st = 98,000 gr
Formula:
gr = st × 98,000With your value: 1 st = 98,000 gr
How big is that?
Everyday references on a logarithmic scale, all expressed in stone so you can sanity-check the result.
Other Stone to Grain conversions
Stone to Grain Conversion Table
| Stone (st) | Grain (gr) |
|---|---|
| 0.5 | 49,000 |
| 1 | 98,000 |
| 2 | 196,000 |
| 5 | 490,000 |
| 10 | 980,000 |
| 15 | 1,470,000 |
| 20 | 1,960,000 |
| 25 | 2,450,000 |
| 50 | 4,900,000 |
| 100 | 9,800,000 |
| 250 | 24,500,000 |
| 500 | 49,000,000 |
| 1000 | 98,000,000 |
Grain to Stone Conversion Table
| Grain (gr) | Stone (st) |
|---|---|
| 0.5 | 5.102041e-6 |
| 1 | 1.020408e-5 |
| 2 | 2.040816e-5 |
| 5 | 5.102041e-5 |
| 10 | 0.000102 |
| 15 | 0.000153 |
| 20 | 0.000204 |
| 25 | 0.000255 |
| 50 | 0.00051 |
| 100 | 0.00102 |
| 250 | 0.002551 |
| 500 | 0.005102 |
| 1000 | 0.010204 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Stone (st)
Mass
Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Grain (gr)
Mass
Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Stone to Grain
To convert from Stone (st) to Grain (gr), multiply the value by 98,000.
Formula: gr = st × 98,000
Reverse: st = gr × 0.0000102041
Step-by-Step Example
- Start with your value in Stone. For example: 5 st
- Multiply by the conversion factor: 5 x 98,000
- The result is: 490,000 gr
About Stone
The stone equals 14 pounds or about 6.35 kg. It is primarily used in the UK and Ireland for expressing body weight.
Fun Fact: The stone varied in weight depending on the commodity being weighed until it was standardized at 14 pounds in 1835.
Common uses: body weight (UK), agriculture.
About Grain
The grain equals exactly 64.79891 milligrams and was originally the weight of a single barleycorn. It is still the standard unit for bullets, propellant and arrows.
Common uses: ammunition, archery, pharmacy (historic).
Frequently Asked Questions
How many Grain are in 1 Stone?
There are exactly 98,000 Grain in 1 Stone. This means the conversion factor from Stone to Grain is 98,000.
What is the formula to convert Stone to Grain?
The formula to convert Stone to Grain is: gr = st × 98,000. For example, to convert 10 Stone to Grain, you would multiply 10 by 98,000.
What is a Stone?
The stone equals 14 pounds or about 6.35 kg. It is primarily used in the UK and Ireland for expressing body weight.
What is a Grain?
The grain equals exactly 64.79891 milligrams and was originally the weight of a single barleycorn. It is still the standard unit for bullets, propellant and arrows.
What are the common uses of Stone?
The Stone is commonly used in body weight (UK), agriculture.
Related Mass Conversions
Cite this page
UnitConvertLab. (2026). Stone to Grain converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/stone-to-grain