Stones to Pounds Converter

Convert weight between stones and pounds instantly with bidirectional functionality

Weight Converter

st

1 stone = 14 pounds

lbs

1 pound = 0.0714 stones

Conversion Formula

Stones to Pounds

pounds = stones × 14

To convert stones to pounds, multiply the stone value by 14.

Pounds to Stones

stones = pounds ÷ 14

To convert pounds to stones, divide the pound value by 14.

Quick Conversion Table

1 st14 lbs
5 st70 lbs
10 st140 lbs
12 st168 lbs
15 st210 lbs
20 st280 lbs

Quick Tips

The stone is primarily used in the UK and Ireland for measuring body weight

1 stone equals exactly 14 pounds

The stone unit originated from using stone weights for market scales

In the UK, adults often express their weight in stones and pounds (e.g., 12 st 8 lbs)

Understanding Stones and Pounds

What is a Stone?

The stone is a traditional British unit of weight used primarily for measuring body weight. One stone is equal to 14 pounds or approximately 6.35 kilograms. While it has largely been replaced by metric units in most contexts, it remains commonly used in the United Kingdom and Ireland for expressing human body weight.

Historical Context

The stone unit dates back to medieval times when merchants used stone weights to measure goods in markets. The weight of a stone varied depending on the commodity being measured, but the 14-pound stone became standardized for most purposes, particularly for measuring wool and later human body weight.

Why Use Stones?

  • Easier to express larger weights with smaller numbers
  • Cultural tradition in the UK and Ireland
  • Provides a middle ground between pounds and hundreds of pounds
  • Commonly used in medical and fitness contexts in British countries

Note: In medical and scientific contexts worldwide, kilograms are generally preferred as they are part of the metric system and provide standardized international measurements.

Common Uses and Applications

⚕️ Healthcare

  • • Body weight measurements in UK hospitals
  • • Patient record keeping
  • • Weight loss program tracking
  • • Pediatric growth monitoring
  • • Nutritional assessments

🏋️ Fitness & Sports

  • • Gym weigh-ins
  • • Boxing and wrestling weight classes
  • • Personal training progress tracking
  • • Sports nutrition planning
  • • Athletic performance monitoring

🏠 Daily Life

  • • Personal weight tracking at home
  • • Diet and wellness programs
  • • Casual conversations about weight
  • • Weight management goals
  • • Bathroom scale readings in UK homes

Comprehensive Conversion Table

StonesPoundsKilogramsCommon Use
6 st84 lbs38.1 kgSmall child weight
8 st112 lbs50.8 kgTypical 10-year-old child
10 st140 lbs63.5 kgAverage adult (lower range)
11 st154 lbs69.9 kgCommon adult weight
12 st168 lbs76.2 kgAverage adult weight
13 st182 lbs82.6 kgCommon adult weight
14 st196 lbs88.9 kgAverage male adult
15 st210 lbs95.3 kgCommon adult weight
16 st224 lbs101.6 kgHeavier adult weight
18 st252 lbs114.3 kgAbove average weight
20 st280 lbs127.0 kgHigher weight range
22 st308 lbs139.7 kgVery heavy weight

Frequently Asked Questions

How many pounds are in a stone?

There are exactly 14 pounds in one stone. This conversion factor has been standardized and is consistent across all uses of the stone as a unit of weight measurement. For example, if someone weighs 10 stones, that equals 140 pounds (10 × 14 = 140).

Why do British people use stones for weight?

The stone is a traditional British unit that has been used for centuries, particularly for measuring body weight. It provides a convenient middle ground between pounds and hundreds of pounds, making it easier to express adult body weights with smaller numbers. For example, saying "12 stone" is more concise than "168 pounds." Cultural tradition keeps this unit in common use, especially in the UK and Ireland, despite the global shift toward metric measurements.

How do you convert stones and pounds to just pounds?

To convert a weight expressed in stones and pounds (e.g., 12 st 8 lbs) to pounds only, multiply the stone value by 14 and add the remaining pounds. Using the example:

  • 12 stones × 14 = 168 pounds
  • 168 pounds + 8 pounds = 176 pounds total

Is the stone used anywhere besides the UK?

The stone is primarily used in the United Kingdom and Ireland for measuring human body weight. While it was historically used in other Commonwealth countries, most have transitioned to metric units (kilograms). The United States never adopted the stone, preferring pounds as the standard imperial weight unit. Today, the stone remains most commonly used in British and Irish contexts, particularly in healthcare, fitness, and everyday conversation about body weight.

What is 168 pounds in stone?

168 pounds equals exactly 12 stones. To calculate this, divide 168 by 14 (since 1 stone = 14 pounds): 168 ÷ 14 = 12 stones. This is a commonly referenced weight as it represents a typical adult weight in the UK weight measurement system.

Should I use stones or kilograms for weight?

The choice depends on your location and context. If you're in the UK or Ireland and discussing weight in everyday conversation, stones are commonly understood and accepted. For medical records, scientific work, or international contexts, kilograms are generally preferred as they're part of the standardized metric system. Many modern scales display both units, allowing you to choose based on your preference and audience.

How accurate is this converter?

This converter uses the exact standardized conversion factor of 14 pounds per stone, making it completely accurate for all conversions between stones and pounds. The calculator also provides conversions to kilograms using the precise factor of 0.453592 kilograms per pound, ensuring accuracy across all weight units displayed.