Pounds to Stones Converter
Convert pounds to stones and stones to pounds. Fast lb to st calculator with exact formula.
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Pounds to Stones Converter
Pounds (lb)
→
Stones (st)
Common Pounds to Stones Examples
140 lb = 10 st
140 lbs to stone
150 lb = 10.714286 st
150 lbs to stone
180 lb = 12.857143 st
180 lbs to stone
200 lb = 14.285714 st
200 lbs to stone
Pounds to Stones: Definition, Origin, Current Use, and Examples
Definition
A pound (lb) is an imperial unit of mass commonly used for body weight and goods. A stone (st) equals 14 pounds. Formula:
Stones (st) = Pounds (lb) ÷ 14
Pounds (lb) = Stones (st) × 14
Origin or History
The stone traces back to marketplace stones used as standards. Modern practice fixes the stone at 14 lb in the imperial/UK system for everyday body weight.
Current Use
- Body weight: Health records, gyms, and fitness plans.
- Media & sports: Athlete listings often use stones and pounds.
- Everyday conversation: People convert between lb and st for simplicity.
Examples
| Pounds (lb) | Stones (st) | Context |
|---|---|---|
| 140 lb | ≈ 10 st | Common goal weight |
| 150 lb | ≈ 10.714286 st | Check-in weight |
| 180 lb | ≈ 12.857143 st | Athlete profile |
| 200 lb | ≈ 14.285714 st | Medical record |
Frequently Asked Questions
How many stones is 150 pounds exactly?
150 ÷ 14 = 10.714286 st.
Does 1 stone always equal 14 pounds?
Yes. In the imperial system, 1 stone is defined as exactly 14 pounds.
How do I convert pounds to stones without a calculator?
Divide pounds by 14 and round to two decimals. Example: 168 lb ÷ 14 = 12 st.
Quick reference: 140 lb, 168 lb, 182 lb, 200 lb in stones?
140 lb ≈ 10 st, 168 lb = 12 st, 182 lb ≈ 13 st, 200 lb ≈ 14.285714 st.