ArchSupply Utilities

Pound to Stone Converter

Instant, two-way conversion across common engineering units.

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1 lb = 0.071428571 st(Pound → Stone)

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Converting pounds to stone

To convert pounds to stone, multiply the value by 0.071428571. Mass conversions support load take-offs, steel tonnage and transport limits, where imperial and metric figures often appear in the same package.

Visual scale

To scale
1 pound = 0.071428571 stone.
1 stone = 14 pounds.

Pound (lb)

The pound (lb) is the base mass unit of US customary practice.

Origin
Defined internationally since 1959 as exactly 0.45359237 kg.
Where it is used
Used for loads, material weights and equipment ratings on US projects.
Relation to SI
1 lb = 0.45359237 kg exactly, so 1 kg is about 2.2046 lb.

Stone (st)

The stone (st) equals 14 pounds and is used mainly in the UK.

Origin
A traditional British trade weight, fixed at 14 avoirdupois pounds.
Where it is used
Used informally in the UK, rarely in technical documentation.
Relation to SI
1 st = 6.35029318 kg exactly.

Frequently asked questions

How many stone are in one pound?

1 lb equals 0.071428571 st.

How do I convert pounds to stone?

Multiply the value by 0.071428571. For example, 10 lb equals 0.71428571 st.

How do I convert back from stone to pounds?

1 st equals 14 lb. The converter above works in both directions, so you can type into either field.

Is this converting mass or weight?

Mass. Kilograms and pounds measure mass; force units such as newtons or kilonewtons are a separate quantity used in structural load calculations.

What is the difference between a US ton and a metric tonne?

A US short ton is 2,000 lb, about 907 kg, while a metric tonne is exactly 1,000 kg. The imperial long ton is 2,240 lb, about 1,016 kg.

Is this mass converter free to use?

Yes. Every unit conversion runs in your browser, needs no account and is free for professional use.

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