170 pounds converts to about 77 (77.1107) kg. Tags Units of Measure Weight and Mass Subjects. Animals & Plants 170 pounds converts to about 77 (77.1107) kg. Wiki User. ∙ 9y ago. Quick conversion chart of pounds to kg. 1 pounds to kg = 0.45359 kg. 5 pounds to kg = 2.26796 kg. 10 pounds to kg = 4.53592 kg. 20 pounds to kg = 9.07185 kg. 30 pounds to kg = 13.60777 kg. 40 pounds to kg = 18.14369 kg. 50 pounds to kg = 22.67962 kg. 75 pounds to kg = 34.01943 kg. Now you know how many 1 kg to lbs and how many kilograms 1 pound, so it is time to move on to the 1 kg to lbs formula. 1 kg to pounds. To convert 1 kg to us lbs a formula is needed. We will show you a formula in two different versions. Let’s begin with the first one: Number of kilograms * 2.20462262 = the 2.20462262 result in pounds dX7zx.