Stone UK to Pound Converter 2026 - st to lb Calculator | Thiyagi

Stone UK to Pound Converter

Convert between British stone and pounds for body weight, fitness tracking, and UK weight measurements

1 stone = 14 pounds
1 pound = 0.071429 stone
Enter a value to see the conversion result

Weight Conversion Reference

Stone ⇔ Pound
1 st ⇔ 14 lb
5 st ⇔ 70 lb
10 st ⇔ 140 lb
12 st ⇔ 168 lb
15 st ⇔ 210 lb
20 st ⇔ 280 lb

Body Weight Examples

Average Adult Weights:
• Petite adult: 8-10 st (112-140 lb)
• Average adult: 10-12 st (140-168 lb)
• Large adult: 12-15 st (168-210 lb)
• Athletic adult: 13-16 st (182-224 lb)
Health Categories (BMI):
• Underweight: Below normal range
• Normal weight: 9-12 st (varies by height)
• Overweight: 12-15 st (varies by height)
• Obese: Above 15 st (varies by height)
Fitness Tracking:
• Weight loss goal: 1-2 lb (0.07-0.14 st) per week
• Muscle gain: 0.5-1 lb (0.035-0.07 st) per week
• Maintenance: ±2-3 lb (±0.14-0.21 st)
• Competition weight: Precise to 0.1 st

Weight Units

  • Stone: British unit = 14 pounds
  • Pound: Imperial unit = 0.453592 kg
  • Conversion: 1 st = 14 lb
  • System: Imperial weight units

Measurement Tips

  • Weigh at consistent times
  • Use calibrated scales
  • Consider clothing weight
  • Track trends, not daily fluctuations

Applications

  • Health: Body weight tracking
  • Fitness: Progress monitoring
  • Medical: Patient records
  • Sports: Weight classes