KG to LBS Converter – Kilograms to Pounds and Back

How to use the kg to lbs converter

1. Choose kg → lb or lb → kg.
2. Type the weight.

The result appears instantly, with stones and pounds and pounds and ounces, plus a table of common weights.

The formulas

Worked examples

• 70 kg = 154.32 lb = 11 st 0.3 lb
• 150 lb = 68.04 kg
• 2.5 kg bag of flour = 5.51 lb = 5 lb 8.2 oz
• 23 kg airline baggage limit = 50.7 lb

Common conversions

Where you’ll need it

• Body weight: the US uses pounds, the UK often uses stones and pounds, and most of the world uses kilograms.
• Gym and fitness: plates and dumbbells come in both kg and lb.
• Travel: airline baggage allowances such as 23 kg (50 lb) or 32 kg (70 lb).
• Cooking and shopping: recipes and packaging from other countries.
• Shipping: parcel prices are set by weight bands.
• Babies: birth weights are often given in pounds and ounces.

Weight and health

If you’re converting your weight to check your BMI, the BMI calculator accepts both kilograms and pounds directly, and the ideal weight calculator shows a healthy range in either unit.

Stones and pounds

In the UK and Ireland, people often describe body weight in stones and pounds. One stone is 14 pounds, or about 6.35 kg. To convert kilograms to stones and pounds, first turn the kilograms into pounds, then divide by 14: the whole number is the stones and the remainder is the pounds. For example, 82 kg is 180.8 lb; 180.8 ÷ 14 = 12 with 12.8 left over, so 12 st 12.8 lb. The converter does this for you underneath every result.

Rounding and precision

For body weight, one decimal place is plenty — bathroom scales are rarely more accurate than that. For cooking, round to the nearest 5 or 10 grams. For shipping and baggage, always round up: an airline weighing your bag at 50.2 lb won’t accept it under a 50 lb limit. Medicine doses for children are often based on weight in kilograms, so always use the exact figure and follow the instructions or your pharmacist’s advice rather than a rounded estimate.

Mass and weight

Strictly speaking, kilograms and pounds measure mass — how much matter something contains. Scales actually measure the force of gravity and convert it to mass, which is why the same person would “weigh” less on the Moon. In everyday life the difference doesn’t matter, and kilograms and pounds are used for both.

For lengths, use the cm to inches converter; for recipes, the cooking converter; and for everything else, the unit converter.