How to Convert Metric Weight to Pounds
Convert every kilogram to 2.2 pounds., Multiply your weight in kilograms by 2.2 to get your weight in pounds., Use a more precise conversion., Estimate the conversion in your head.
Step-by-Step Guide
-
Step 1: Convert every kilogram to 2.2 pounds.
A kilogram is a unit of weight equal to
2.2 pounds: 1kg =
2.2 lbs.
This means that 2 kg =
4.4 lbs, 3 kg =
6.6 lbs, and so on. 1kg∗2.2lbkg=2.2lbs{\displaystyle 1kg*2.2{\frac {lb}{kg}}=2.2lbs} Kilograms are abbreviated kg and pounds are abbreviated lbs. -
Step 2: Multiply your weight in kilograms by 2.2 to get your weight in pounds.
Since each kilogram is
2.2 pounds, all you have to do is multiply the number of kilograms by this number to get your weight in pounds: 100kg=2.2lbkg∗100kg=220lbs{\displaystyle 100kg=2.2{\frac {lb}{kg}}*100kg=220lbs} 38kg=2.2lbkg∗38kg=83.6lbs{\displaystyle 38kg=2.2{\frac {lb}{kg}}*38kg=83.6lbs}
69.42kg=2.2lbkg∗69.42kg=152.724lbs{\displaystyle
69.42kg=2.2{\frac {lb}{kg}}*69.42kg=152.724lbs} , One kilogram is actually slightly heavier than
2.2 pound.
This difference is so small that it doesn't matter in everyday life.
If precision is very important, such as in a chemical reaction, use a more precise conversion: 1kilogram=2.20462pounds{\displaystyle 1kilogram=2.20462pounds}, Quickly, without a calculator — what is
78.4 kilograms converted into pounds? The following estimation methods will help you get a close answer if you just need to approximate something, though you should remember they aren't always accurate:
Rounding up and down:
Round to the closest number you can easily multiply for a rough estimate.
In this example, round
78.4 kg to 80 kg, and
2.2 lb/kg to 2 lb/kg:
Estimated Answer: 80 kg * 2 lb/kg = 160 lbs.
Double Decimals:
Remember that
78.4∗2.2=(78.4∗2)+(78.4∗0.2){\displaystyle
78.4*2.2=(78.4*2)+(78.4*0.2)} This is still pretty difficult, so round
78.4 to the nearest whole number to get (78 * 2) + (78 *
0.2).
Multiply 78 by 2 to get
156.
For the second part, you can use the same result (156), then just slide the decimal one place to the left: 156 becomes
15.6.
Add the two results together and voila! Estimated Answer: (78 * 2) + (78 *
0.2) = 156 + (156 *
0.1) = 156 +
15.6 =
171.6 lb Actual Answer (for comparison):
78.4 kg *
2.2 lb/kg =
172.48 lbs. -
Step 3: Use a more precise conversion.
-
Step 4: Estimate the conversion in your head.
Detailed Guide
A kilogram is a unit of weight equal to
2.2 pounds: 1kg =
2.2 lbs.
This means that 2 kg =
4.4 lbs, 3 kg =
6.6 lbs, and so on. 1kg∗2.2lbkg=2.2lbs{\displaystyle 1kg*2.2{\frac {lb}{kg}}=2.2lbs} Kilograms are abbreviated kg and pounds are abbreviated lbs.
Since each kilogram is
2.2 pounds, all you have to do is multiply the number of kilograms by this number to get your weight in pounds: 100kg=2.2lbkg∗100kg=220lbs{\displaystyle 100kg=2.2{\frac {lb}{kg}}*100kg=220lbs} 38kg=2.2lbkg∗38kg=83.6lbs{\displaystyle 38kg=2.2{\frac {lb}{kg}}*38kg=83.6lbs}
69.42kg=2.2lbkg∗69.42kg=152.724lbs{\displaystyle
69.42kg=2.2{\frac {lb}{kg}}*69.42kg=152.724lbs} , One kilogram is actually slightly heavier than
2.2 pound.
This difference is so small that it doesn't matter in everyday life.
If precision is very important, such as in a chemical reaction, use a more precise conversion: 1kilogram=2.20462pounds{\displaystyle 1kilogram=2.20462pounds}, Quickly, without a calculator — what is
78.4 kilograms converted into pounds? The following estimation methods will help you get a close answer if you just need to approximate something, though you should remember they aren't always accurate:
Rounding up and down:
Round to the closest number you can easily multiply for a rough estimate.
In this example, round
78.4 kg to 80 kg, and
2.2 lb/kg to 2 lb/kg:
Estimated Answer: 80 kg * 2 lb/kg = 160 lbs.
Double Decimals:
Remember that
78.4∗2.2=(78.4∗2)+(78.4∗0.2){\displaystyle
78.4*2.2=(78.4*2)+(78.4*0.2)} This is still pretty difficult, so round
78.4 to the nearest whole number to get (78 * 2) + (78 *
0.2).
Multiply 78 by 2 to get
156.
For the second part, you can use the same result (156), then just slide the decimal one place to the left: 156 becomes
15.6.
Add the two results together and voila! Estimated Answer: (78 * 2) + (78 *
0.2) = 156 + (156 *
0.1) = 156 +
15.6 =
171.6 lb Actual Answer (for comparison):
78.4 kg *
2.2 lb/kg =
172.48 lbs.
About the Author
Michelle Cox
Enthusiastic about teaching pet care techniques through clear, step-by-step guides.
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