Accurate pounds to kg converter for American body weight tracking, fitness goals, and health monitoring. Convert 150 lbs to kg, 120 lbs to kg, 180 lbs to kg, 200 pounds to kg, and any weight for BMI and fitness calculations.
Convert pounds to kg and kg to pounds using the official US customary standard conversion factor. 1 kilogram = 2.20462262185 pounds. Use this body weight converter for fitness tracking, BMI calculations, and health monitoring.
Accurate pounds to kg converter for American body weight tracking, fitness goals, and health monitoring. Convert 150 lbs to kg, 120 lbs to kg, 180 lbs to kg, 200 pounds to kg, and any weight for BMI and fitness calculations.
Convert pounds to kg and kg to pounds using the official US customary standard conversion factor. 1 kilogram = 2.20462262185 pounds. Use this body weight converter for fitness tracking, BMI calculations, and health monitoring.
High precision recommended for medical records and professional fitness tracking. Daily weight monitoring can use whole numbers. Nutrition and meal planning typically use 1 decimal place. For accurate BMI calculations, use 2 decimal places.
Common mistake: Using approximate 2.2 lbs per kg. While close, using 2.2046 gives more accurate results, especially for medical records, BMI calculations, and precise fitness tracking. Also, confusing avoirdupois pounds with troy pounds (used for precious metals). Remember: 150 lbs = 68.04 kg, 120 lbs = 54.43 kg, 180 lbs = 81.65 kg, 200 lbs = 90.72 kg.
| Item | Pounds (lbs) | Kilograms (kg) |
|---|---|---|
| Newborn | 7.7 | 3.5 |
| 5-year-old | 44.1 | 20 |
| 120 lbs | 120 | 54.43 |
| 150 lbs | 150 | 68.04 |
| 180 lbs | 180 | 81.65 |
| 200 lbs | 200 | 90.72 |
| US male avg | 194 | 88 |
| US female avg | 165.3 | 75 |
| Olympic boxer | 154-201 | 70-91 |
1 kilogram equals approximately 2.2046 pounds. The exact conversion factor is 1 kg = 2.20462262185 lbs.
150 pounds equals approximately 68.04 kilograms. This is a common weight for American adults.
120 pounds equals approximately 54.43 kilograms. This is a typical weight for women in the US.
180 pounds equals approximately 81.65 kilograms. This is a common weight for American men.
200 pounds equals approximately 90.72 kilograms. This is a common weight for larger-framed individuals.
To convert pounds to kilograms: kg = lbs ÷ 2.20462262185. To convert kilograms to pounds: lbs = kg × 2.20462262185.
Divide the weight in pounds by 2.20462262185 to get kilograms. For example: 150 lbs ÷ 2.2046 = 68.04 kg.
The average American male weighs about 194 lbs (88 kg), and the average American female weighs about 165 lbs (75 kg).
Yes, this body weight converter provides accurate results for BMI calculations. BMI = weight (kg) / height (m)². Use 2 decimal places for precise BMI tracking.
Pounds are part of the US customary system and remain the standard for body weight in the United States. Most Americans learn pounds from childhood for weighing themselves and tracking fitness goals.
Last Updated: 2026 · Reviewed by the UnitFig editorial team