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100 Pounds to Stones

100 lb converted to st. Full working, formula and reference table below.

Category
weight
Input
100 lb
Output
7.142857
// INPUT01

Pound

// OUTPUT02
7.142857

Stone

Factor0.071428571
Inverse14
Formulast = lb × 0.071428571
Updated2026-05-25

OTHER AMOUNTS

lb → st
lb → st2 lb5 lb10 lb25 lb50 lb100 lb500 lb1000 lb

Pound to Stone Conversion Table

Common pound to stone values for quick reference.

PoundStone
10.071428571
20.142857143
50.357142857
100.714285714
251.785714
503.571429
1007.142857
25017.857143
50035.714286
100071.428571

When you'd actually use this

Where you'd actually use pound → stone in everyday Australian life.

  • Cooking from overseas recipes

    American and British cookbooks rarely use the same weight units as Australian ones.

  • Online shopping

    Product specs from US stores often list weight in imperial units.

  • Travel and fitness apps

    Apps that default to a different region may show weight you need to translate.

Conversion Formula

To convert Pound to Stone, multiply the pound value by 0.071428571. This factor represents how many stone are equivalent to one pound.

Formula

Stone = Pound × 0.071428571

Inverse (converting back)

Pound = Stone × 14

How to Convert Pound to Stone

Convert pound to stone in three steps. The relationship is a single multiplication, so once you know the factor you can do it in your head for round numbers.

  1. Start with your value

    Take the number of pound you want to convert.

  2. Multiply by the factor

    Multiply the value by 0.071429.

  3. Read your answer

    The result is the equivalent in stone.

Worked example

10 pound = 0.714285714 stone

10 × 0.071429 = 0.714285714 stone.

What is a Pound?

A pound is 16 ounces or about 453.59 grams, the everyday imperial unit of weight in the US and UK.

Origin

From the Latin libra; the international avoirdupois pound was standardised at 453.59237 g in 1959.

Notable uses

  • Body weight (US)
  • Imperial recipes
  • Shipping labels

What is a Stone?

A stone is 14 pounds (about 6.35 kg), used in the UK and Ireland for body weight.

Origin

Anglo-Saxon weight system; standardised at 14 lb by the Weights and Measures Act 1835.

Notable uses

  • Body weight (UK)
  • Older medical records

Frequently Asked Questions