FREE LIFTING TOOLS

Kg to lb.
Without the guesswork.

Convert equipment mass in either direction. See the calculation and keep the same unit convention in your workout log.

Convert a weight

20 kg = 44.092 lb

20 ÷ 0.45359237 = 44.092452… lb

Common kilogram weights in pounds

Rounded to three decimal places
KilogramsPounds
5 kg11.023 lb
10 kg22.046 lb
15 kg33.069 lb
20 kg44.092 lb
25 kg55.116 lb
40 kg88.185 lb
50 kg110.231 lb
60 kg132.277 lb
80 kg176.370 lb
100 kg220.462 lb

A 20 kg bar is not exactly 45 lb

One international avoirdupois pound equals exactly 0.45359237 kilograms. A 20 kg bar therefore converts to about 44.092 lb, while 45 lb converts to about 20.412 kg. Those are different marked equipment weights. Use the marking on the bar or plate rather than replacing one with the nearest familiar gym number.

The tool calculates from the exact factor and rounds the displayed result to three decimal places. Converting a rounded result back may produce a small difference. Keep the original value when you need to repeat a calculation.

Convert the same thing you record

If your dumbbell entry means one dumbbell, convert one dumbbell’s weight. If your barbell entry includes the bar and both sides, convert that total. A unit change should not also change what the number represents. Do not combine kg and lb in one arithmetic total without converting them first.

This tool converts mass. It does not select a suitable training load, estimate machine resistance or account for mechanical advantage.

Conversion reference: NIST Guide to the SI, conversion factors.

Calculate a loaded barbell · Keep dumbbell records consistent