Ounces to Stones Converter

🔒 Runs in your browser — nothing is sent to a server

Convert ounces to stones via the imperial chain 1 stone = 14 lb = 224 oz, so 1 oz ≈ 0.004464 stone. Niche pairing — used mostly when an unusually fine ounce-level reading needs to be folded into a UK stone-format body-weight headline figure (for instance summarising long-term gym progress in stones from a per-session ounce-precise scale). Browser-local conversion.

Ounce (oz)
Stone (st)

Ounce (oz) → Stone (st)

Quick reference table

Ounce (oz)Stone (st)
1 oz0.0045 stone
2 oz0.0089 stone
5 oz0.0223 stone
10 oz0.0446 stone
25 oz0.1116 stone
50 oz0.2232 stone
100 oz0.4464 stone

Glossary

Ounce (oz)

An ounce (avoirdupois) is one sixteenth of a pound, defined as exactly 28.349523125 g since 1959. It is the dominant unit for US food packaging, beverages, postal letters and personal-care products. One fluid ounce of water at 4 °C weighs almost exactly one avoirdupois ounce — a coincidence that helped the unit survive in modern US recipes.

Stone (st)

A stone is exactly 14 pounds or 6.35029318 kg, used in the United Kingdom and Ireland for personal body weight (e.g. "11 st 4 lb"). It is rarely used in the United States, where pounds are reported directly. The stone is not used in scientific or commercial weighing — only in everyday colloquial body-weight reporting.

Metric system (SI)

The metric system is a decimal system of measurement built around the kilogram for mass, the meter for length and the second for time, with multiples and submultiples expressed as powers of ten (milligram, gram, tonne). Adopted in France in 1799 and codified internationally as the International System of Units (SI) in 1960, it is now the official system in nearly every country and the standard in science.

Imperial / US Customary system

The imperial system is the historical English system of weights and measures whose mass units are the ounce, pound, stone and ton (16 oz = 1 lb, 14 lb = 1 stone, 2,000 lb = 1 US short ton). Codified by the British Weights and Measures Act of 1824 and aligned with US Customary by the 1959 international yard-and-pound agreement (1 lb = 0.45359237 kg exactly), it is still used in the United States and the United Kingdom for everyday weights.

Related tools

Stones to Ounces
Convert stones to ounces — 1 stone = 224 oz
Pounds to Stones
Convert pounds to stones — 14 lb = 1 stone
Ounces to Pounds
Convert ounces to pounds — 16 oz = 1 lb (1 oz = 0.0625 lb)
Weight & Mass Converter
Convert weight and mass — mg, g, kg, tonnes, ounces, pounds, stones, US tons