What is Stone (st)?

The stone is a unit of weight in the imperial system, commonly used in the United Kingdom and Ireland for measuring body weight. One stone is equal to 14 pounds (lbs) or approximately 6.35 kilograms.

The stone is primarily used for personal weight measurements and is less common in scientific or commercial contexts. It remains popular in British and Irish culture for expressing human body weight.

What is Pounds(lbs)?

The pound serves as the weight measurement unit in both the imperial and US customary systems. The abbreviated notation for pound is lb, with one stone equivalent to 14 pounds.

A single pound contains 16 ounces (oz), and it is widely used for measuring weight in the United States and other countries.

How do you convert stone to pounds (lbs)?

The Conversion Formula

To convert stone to pounds, multiply the number of stone by 14:
Formula: Pounds = Stone × 14

Step-by-Step Process

• Take your weight in stone
• Multiply by 14
• The result is your weight in pounds

Examples

• 10 st to lbs:
  10 st × 14 = 140 lbs
• 5 st to lbs:
  5 st × 14 = 70 lbs
• 8 st to lbs:
  8 st × 14 = 112 lbs
• 12 st to lbs:
  12 st × 14 = 168 lbs
• 15 st to lbs:
  15 st × 14 = 210 lbs

Quick Reference

• 1 st = 14 lbs
• 1 lb = 0.0714286 st

Why This Conversion Works

The conversion factor 14 is the exact number of pounds in one stone. This is a standard used primarily in the UK and Ireland for measuring body weight.

Tips for Mental Math

For quick calculations, remember that each stone equals 14 pounds:

10 st = 140 lbs (10 × 14)
5 st = 70 lbs (5 × 14)

This simple multiplication makes converting stone to pounds straightforward for everyday use.

Stone to Pounds Conversion Table

The conversion of stone to pounds for certain values are provided below: