Pounds to Kilograms Converter
Convert pounds (lbs) to kilograms (kg) with our free online calculator. Essential for fitness tracking, international shipping, medical records, and everyday weight conversions.
Conversion Formula
| Conversion | Formula | Example |
|---|---|---|
| lbs to kg | lbs × 0.453592 | 150 lbs = 68.04 kg |
| kg to lbs | kg × 2.20462 | 70 kg = 154.32 lbs |
Quick Reference Table
| Pounds | Kilograms | Common Reference |
|---|---|---|
| 100 lbs | 45.36 kg | Light adult |
| 120 lbs | 54.43 kg | Average female |
| 150 lbs | 68.04 kg | Average adult |
| 180 lbs | 81.65 kg | Average male |
| 200 lbs | 90.72 kg | Larger adult |
| 250 lbs | 113.40 kg | Heavy adult |
Medical Weight Conversions
Healthcare often requires precise weight measurements:
| Lbs | Kg | Clinical Note |
|---|---|---|
| 1 lb | 0.454 kg | Drug dosing precision |
| 2.2 lbs | 1 kg | Easy conversion factor |
| 10 lbs | 4.54 kg | Weight loss milestone |
Fitness Weight Plates
| Imperial | Metric Equivalent |
|---|---|
| 2.5 lbs | 1.13 kg |
| 5 lbs | 2.27 kg |
| 10 lbs | 4.54 kg |
| 25 lbs | 11.34 kg |
| 45 lbs | 20.41 kg |
Conversion Code Example
``javascript
function lbsToKg(lbs) {
return lbs * 0.453592;
}
function kgToLbs(kg) {
return kg * 2.20462;
}
// Examples
console.log(lbsToKg(150)); // 68.0388
console.log(kgToLbs(70)); // 154.324
``
International Shipping
Weight limits vary by carrier:
| Carrier | Max Weight | In kg |
|---|---|---|
| USPS Priority | 70 lbs | 31.75 kg |
| UPS Ground | 150 lbs | 68.04 kg |
| FedEx Ground | 150 lbs | 68.04 kg |
| International Air | 50 lbs typical | 22.68 kg |