Stone to Pounds

What Is Stone to Pounds Conversion?

Stone and pounds are both imperial units, but they're used in different countries. The UK uses stone for body weight, while the US uses pounds. This converter bridges that gap for transatlantic communication and travel.

When You Need This Conversion

• US medical forms — American hospitals ask for pounds
• American fitness apps — Many US apps use lbs only
• Talking to Americans — They understand pounds, not stone
• US shopping — Weight-based products listed in lbs
• Travel to the US — Scales and documents use pounds
• Weight classes — US boxing/wrestling uses pounds

The Conversion Factor

This is the simplest conversion: 1 stone = 14 pounds exactly. No decimals needed — just multiply by 14.

Both Imperial, Different Countries

Interestingly, both units are imperial, but evolved different usage patterns. The UK standardized on stone for body weight, while the US uses pounds exclusively.

How to Convert Stone to Pounds

Using This Converter

1. Enter weight in stone
2. See the pound equivalent instantly
3. Use swap to convert lbs to stone
4. Copy the result for forms or apps

The Simple Math

Multiply stone by 14. That's it:

• 8 stone = 112 lbs
• 10 stone = 140 lbs
• 12 stone = 168 lbs
• 14 stone = 196 lbs

Stone and Pounds Combined

If you weigh 11 stone 5 lbs:

• 11 × 14 = 154 lbs
• Add the extra 5 lbs
• Total: 159 lbs

Common Body Weights

• 9 stone = 126 lbs (small adult)
• 10 stone = 140 lbs
• 11 stone = 154 lbs (average adult)
• 13 stone = 182 lbs
• 15 stone = 210 lbs

Features & Use Cases

Instant Conversion

Multiply stone by 14 to get pounds. This converter does it instantly, handles decimals, and lets you swap directions.

Common Use Cases

American Medical Forms

US hospitals, clinics, and insurance forms always ask for weight in pounds. Convert your stone weight before your appointment.

US Fitness Apps

Many American fitness apps don't offer stone as an option. Enter your weight in pounds for accurate tracking.

Transatlantic Communication

When discussing weight with American friends, family, or colleagues, they'll understand "150 pounds" but not "10 stone 10."

Sports Weight Classes

American boxing, wrestling, and MMA use pound-based weight classes. Know your category: lightweight (135 lbs), welterweight (170 lbs), etc.

US Product Specifications

Weight limits on luggage, furniture, and equipment in the US are listed in pounds. Convert to compare with your stone weight.

Reference Table

Stone values from 7 to 20 with their pound equivalents, covering most adult weight ranges.

Frequently Asked Questions

How many pounds are in a stone?

Exactly 14 pounds = 1 stone. This is a precise definition, not an approximation.

How do I convert 11 stone 7 lbs to just pounds?

Multiply stone by 14, then add extra pounds: 11 × 14 = 154, plus 7 = 161 pounds.

Why doesn't America use stone?

The US adopted pounds from British trade but never adopted stone, which was primarily used for weighing people and agricultural products in Britain.

What's 150 pounds in stone?

Divide by 14: 150 ÷ 14 = 10.71 stone, or 10 stone 10 lbs.

Is stone still used officially in the UK?

Not officially — the UK legally uses metric. But stone remains common in everyday speech for body weight.

What's the heaviest weight class in boxing in stone?

Heavyweight is 200+ lbs (14+ stone). Cruiserweight is 200 lbs (14 stone 4 lbs) and below.