Pounds to Kilograms Conversion Chart
Quick-reference chart converting pounds (lbs) to kilograms (kg). Covers 1–500 lb at common intervals with the exact conversion formula.
For a custom value not in this chart, use the interactive Pound to Kilogram converter.
| Pound (lb) | Kilogram (kg) |
|---|---|
| 1 lb | 0.453592 kg |
| 2 lb | 0.907185 kg |
| 3 lb | 1.36078 kg |
| 5 lb | 2.26796 kg |
| 10 lb | 4.53592 kg |
| 15 lb | 6.80389 kg |
| 20 lb | 9.07185 kg |
| 25 lb | 11.3398 kg |
| 30 lb | 13.6078 kg |
| 40 lb | 18.1437 kg |
| 50 lb | 22.6796 kg |
| 60 lb | 27.2155 kg |
| 70 lb | 31.7515 kg |
| 75 lb | 34.0194 kg |
| 80 lb | 36.2874 kg |
| 100 lb | 45.3592 kg |
| 110 lb | 49.8952 kg |
| 120 lb | 54.4311 kg |
| 130 lb | 58.967 kg |
| 140 lb | 63.5029 kg |
| 150 lb | 68.0389 kg |
| 175 lb | 79.3787 kg |
| 200 lb | 90.7185 kg |
| 250 lb | 113.398 kg |
| 300 lb | 136.078 kg |
| 400 lb | 181.437 kg |
| 500 lb | 226.796 kg |
Conversion Formula
kg = lbs × 0.453592 Example: 150 lbs × 0.453592 = 68.04 kg Quick estimate: multiply lbs by 0.45 (within ~0.6%) Body weight anchors (lb → kg): 100 lb = 45.36 kg 180 lb = 81.65 kg 120 lb = 54.43 kg 200 lb = 90.72 kg 150 lb = 68.04 kg 220 lb = 99.79 kg Gym plate conversions (US → metric): 45 lb plate = 20.41 kg 25 lb plate = 11.34 kg 35 lb plate = 15.88 kg 10 lb plate = 4.54 kg 50 lb airline limit = 22.68 kg
Frequently Asked Questions
How many kg is 150 pounds?
150 pounds equals approximately 68.04 kilograms. The calculation: 150 × 0.453592 = 68.04 kg. A quick mental estimate: 150 × 0.45 = 67.5 kg.
How many kg is 100 pounds?
100 pounds equals approximately 45.36 kilograms. This is a useful anchor: 100 lbs ≈ 45.4 kg, so 200 lbs ≈ 90.7 kg and 50 lbs ≈ 22.7 kg.
What is the exact conversion factor from lbs to kg?
One pound equals exactly 0.45359237 kilograms by international definition. For practical purposes, 0.4536 is accurate to 4 decimal places and sufficient for everyday use.
What is 50 lb in kg?
50 × 0.453592 = 22.68 kg — this is the standard US domestic airline checked baggage weight limit. International limit is typically 23 kg (50.71 lb).
How much does a 225 lb barbell weigh in kg?
225 lb × 0.453592 = 102.06 kg. A standard loaded bar: 45 lb bar + two 45 lb plates per side = 45 + 90 + 90 = 225 lb. Three plates per side = 315 lb = 142.88 kg.
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This chart covers common values. For any number, use the interactive converter.
Use the interactive converter →All conversion values are calculated using internationally recognized conversion factors. Results are provided for general informational purposes — verify critical values independently. Read our full disclaimer.