What is the conversion formula from pound to stone?

Value in stone = Value in pound × 1

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Pound to Stone

Professional lb to st conversion.

Pound

Common imperial mass unit, defined as exactly 0.45359237 kilograms.

Stone

Imperial mass unit equal to 14 pounds, commonly used for body weight in the UK.

Quick Links Logic & Formula FAQ

Amount

Result

0.07142857

Unit

Amount

Unit

Result

0.07142857

Unit

Precision: 8 decimal places

Logic & Formula

To convert Pound to Stone, we use the specific conversion ratio for this category. 1 lb is equal to 0.07142857 st.

Value in st = (Value in lb * 0.45359237) / 6.35029318

Unit Definitions

Pound

Common imperial mass unit, defined as exactly 0.45359237 kilograms.

Stone

Imperial mass unit equal to 14 pounds, commonly used for body weight in the UK.

Verified 2026 Standards

Industrial Precision

How to convert Pound to Stone?

Enter the value in Pound, choose the target unit Stone, and the result updates instantly. This page also includes the conversion formula and a quick reference table for verification.

Formula: Value in st = Value in lb × 0.07142857

Common Conversions Table

Value (lb)	Result (st)
1	0.07142857
10	0.71428571
25	1.78571429
50	3.57142857
100	7.14285714
1000	71.42857143

FAQ

What is the conversion formula from lb to st?

Value in st = Value in lb × 0.07142857

What is the smallest unit in Weight & Mass?

The smallest unit (as defined on this site) is: Electron Mass (Rest) (me). For higher precision, convert using a smaller unit first.

Are the results accurate?

Yes. Conversions run locally in your browser using verified ratios and display up to 8 decimals. Some categories like temperature and fuel use specialized formulas.

About this conversion

This page converts Pound to Stone using verified ratios and includes tables, examples, and FAQs for quick verification.

Pound

Common imperial mass unit, defined as exactly 0.45359237 kilograms.

Stone

Imperial mass unit equal to 14 pounds, commonly used for body weight in the UK.

Formula and precision

Value in st = Value in lb × 0.07142857

1 lb is equal to 0.07142857 st.

Yes. Conversions run locally in your browser using verified ratios and display up to 8 decimals. Some categories like temperature and fuel use specialized formulas.

Use smaller units for higher precision, then convert back if needed.
Temperature and fuel categories can’t be reduced to one constant multiplier.
Symbols vary by region (US/UK gallons, metric vs. imperial abbreviations).
For engineering work, validate with a second reference and keep unit symbols.

Quick examples

Example: 1 lb = 0.07142857 st.

Value (lb)	Result (st)
1	0.07142857
12.5	0.89285714
50	3.57142857
100	7.14285714

Common mistakes and definitions

Weight and mass are often used interchangeably in everyday language. For technical work, keep definitions and symbols consistent and round only at the end.

Rounding too early (convert first, then round at the end).
Mixing similar-looking symbols (for example, “m” vs “mm”, or “b” vs “B”).
Copying values without the unit symbol, which makes validation harder.

Common Conversions Table

Pound (lb)	Stone (st)
1	0.07142857
2	0.14285714
3	0.21428571
5	0.35714286
10	0.71428571
25	1.78571429
50	3.57142857
100	7.14285714
250	17.85714286
500	35.71428571
1000	71.42857143

Category facts

Smallest unit (on this site)

Electron Mass (Rest) (me)

Largest unit (on this site)

Sun's Mass (M☉)

Popular conversions

Back to Weight & Mass category Browse more related converters below.

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Related conversions

Convert Pound to:

Pound (Troy/Apothecary)Stone (US)Ounce Pound-force·second²/foot Hectogram Kilogram-force·second²/meter Dekagram Gram

Convert to Stone from:

Kilopound UK Ton (Imperial)Poundal Kilogram Metric Tonne Megagram Tonne Quarter (US)

FAQ

How to convert Pound to Stone?

Enter the value in Pound, choose the target unit Stone, and the result updates instantly. This page also includes the conversion formula and a quick reference table for verification.

What is the conversion formula from lb to st?

Value in st = Value in lb × 0.07142857

What is the smallest unit in Weight & Mass?

The smallest unit (as defined on this site) is: Electron Mass (Rest) (me). For higher precision, convert using a smaller unit first.

Why can results differ between websites?

Different standards, rounding rules, and unit definitions can change results. This page shows the formula used for transparency.

Are the results accurate?

Yes. Conversions run locally in your browser using verified ratios and display up to 8 decimals. Some categories like temperature and fuel use specialized formulas.

More Related Weight & Mass Tools

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