Pounds to Kilograms Converter
Convert pounds to kilograms instantly. 1 lb equals 0.453592 kg. Use the converter above, or the formula, worked example and table below for common weights.
Live formula: 1 lb → kg
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How to Use the Pounds to Kilograms Converter
- 1. Enter a value in the left input field — the converter is already set to Pound (lb) to Kilogram (kg).
- 2. Read the instant converted value and review the live formula line.
- 3. Use the swap button to reverse the direction, or copy either amount.
- 4. Check the table below for common lbs to kg conversions.
Pounds to Kilograms Converter Formula
kilograms = pounds × 0.45359237
Worked example: 150 lb × 0.45359237 = 68.0389 kg
Pound (lb) to Kilogram (kg) Conversion Table
| From Unit | To Unit | Input | Result |
|---|---|---|---|
| Pound (lb) | Kilogram (kg) | 0.5 | 0.226796 |
| Pound (lb) | Kilogram (kg) | 1 | 0.453592 |
| Pound (lb) | Kilogram (kg) | 2 | 0.907185 |
| Pound (lb) | Kilogram (kg) | 5 | 2.267962 |
| Pound (lb) | Kilogram (kg) | 10 | 4.535924 |
| Pound (lb) | Kilogram (kg) | 20 | 9.071847 |
| Pound (lb) | Kilogram (kg) | 50 | 22.679619 |
| Pound (lb) | Kilogram (kg) | 100 | 45.359237 |
Did You Know?
- 1 lb is defined as exactly 0.45359237 kg by international agreement.
- The avoirdupois pound is the same unit in the US and the UK.
Frequently Asked Questions
How many kg is 1 lb?
1 pound equals 0.453592 kg. The pound is defined as exactly 0.45359237 kg by international agreement.
How do I convert lbs to kg mentally?
Divide the pounds by 2.2 for a quick estimate. For the exact value, multiply by 0.4536 — for example, 150 lb ÷ 2.2 ≈ 68 kg.
What is 150 lbs in kg?
150 lb equals 68.04 kg (150 × 0.45359237 = 68.0389 kg).
Are US and UK pounds the same?
Yes, for mass. The avoirdupois pound is the same unit in the United States and the United Kingdom — 1 lb = 0.45359237 kg in both.