What this conversion means in practice
You already have values in Stone (st) and need Pound (lbs) for the same material, drawing, or dataset. The factor below is the exact reciprocal of the forward direction; use it when sources quote the “other” unit first.
This page focuses on one job: converting stone to pound quickly and correctly. That sounds simple, but the context matters. People use this specific conversion for body weight logging, food prep, shipping labels, fitness programming, and product specifications that mix metric and US customary units in the same workflow.
If you are moving between systems often, it helps to remember the fixed ratio: 1 st = 14 lbs. Once that ratio is clear, you can sanity-check numbers before copying them into spreadsheets, forms, or reports. For example, converting a small quantity should stay small, and converting a larger value should scale proportionally. If a result looks wildly off, it is usually a misplaced decimal, the wrong unit (such as troy ounce vs avoirdupois ounce), or a typo in the source value.
The converter above and the lookup table below are designed for fast checks, while the notes on each unit help with documentation, training, and technical writing where unit definitions need to be explicit.
Stone
Definition: A stone (st) is a British imperial unit equal to exactly 14 pounds, or 6.35029318 kilograms.
History and origin: Stone once varied by commodity and region in Britain. Over time, legal and commercial standards fixed it at 14 pounds for consistent measurement.
Current use: Stone is still commonly used in the UK and Ireland for body weight, often alongside pounds (for example, 11 st 4 lb).
Pound
Definition: The international avoirdupois pound (lb) is defined exactly as 0.45359237 kilograms. One pound equals exactly 16 avoirdupois ounces.
History and origin: The modern pound descends from the Roman libra through many regional variants. In 1959, English-speaking countries agreed on the exact kilogram definition used today, standardizing trade and engineering calculations.
Current use: Pounds are widely used in the United States for body weight, groceries, and household measurements. They also remain visible in UK labeling and in global contexts where US customary units are common.
How to convert stone to pound
Multiply the stone value by 14 to get pound.
Example: 15 st × 14 = 210 lbs
Stone to Pound conversion table
| Stone (st) | Pound (lbs) |
|---|---|
| 0.1 st | 1.4 lbs |
| 1 st | 14 lbs |
| 2 st | 28 lbs |
| 3 st | 42 lbs |
| 5 st | 70 lbs |
| 10 st | 140 lbs |
| 20 st | 280 lbs |
| 50 st | 700 lbs |
| 100 st | 1,400 lbs |
| 1,000 st | 14,000 lbs |
Stone to Pound FAQ
Quick answers for Stone-to-Pound rounding (reverse workflow), precision, and common mistakes.
Is this conversion factor exact?
It depends on the pair. Many unit relationships are exact by definition (for example, pound to kilogram is fixed exactly), while displayed decimals are rounded for readability.
How many decimals should I keep?
Use more decimals for scientific work and fewer for consumer-facing labels. For most daily use, 2 to 3 decimals is enough. Regulatory, medical, and engineering contexts may require stricter precision rules.
What is the most common mistake with this conversion?
The most common issue is mixing unit systems or abbreviations that look similar. Always confirm the source unit first, then convert once. Double-conversion errors are common when values are copied between tools.