LBS to KG Converter

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Convert pounds to kilograms exactly (1 lb = 0.45359237 kg), and back again.

LBS to KG Converter

1 lb = 0.45359237 kg

1 lb in every weight unit
UnitValue
Milligram mg4,53,592.37
Gram g453.59237
Kilogram kg0.45359237
Quintal q0.0045359237
Tonne (metric ton) t0.00045359237
Ounce oz16
Pound lb1
Stone st0.07142857143
Tola tola38.88888889
Carat (gemstones) ct2,267.96185
How to use, limits & privacy

About LBS to KG Converter

Convert pounds (lb or lbs) to kilograms using the exact definition: 1 lb = 0.45359237 kg, so kg = lb × 0.45359237. For example 5 lb = 2.268 kg, 150 lb = 68.04 kg, 180 lb = 81.65 kg and 200 lb = 90.72 kg. The page opens with Pound in From and Kilogram in To. Because the factor is exact, results for whole pounds end cleanly, and the table also gives grams, ounces and stone.

How to Use

1

Type the pounds

Enter the weight in the From box, for example 165 from a US fitness app or 5 from a protein tub label.

2

Read the kilograms

The To box shows the result, such as 74.84274105 kg for 165 lb, and the line below repeats it.

3

Ounces on the label?

Change the From unit to Ounce and type the ounces, or add them to the pounds as ounces ÷ 16.

4

Convert the other way

Type kilograms in the To box, or press Swap units, to get pounds. Copy result copies the number without commas.

Privacy & Processing

  • Mode: local
  • Files Leave Browser: Local tool processing; review details below
  • Max Input Size: Device memory limits
  • Account Required: No
  • Data Stored Locally: Nothing you type is saved. If you switch to another category, that choice is remembered in this browser.
  • Network Processing: Assets or models may require an initial download

Everything is calculated in your browser. Nothing you type is sent anywhere.

Rules & Limitations

  • A pound is 16 ounces. A weight such as 2 lb 8 oz must be typed as 2.5 lb, or converted in two parts.
  • Stone (14 lb) is in the table for UK weights; type stone values with the From unit set to Stone.
  • Results are shown to at most 10 significant digits; whole results are shown in full.

Top Suggestions

  • Reading body weight from a US or UK fitness app, scale or medical report
  • Converting product weights on imported goods, such as a 5 lb protein tub
  • Comparing dumbbells and plates sold in pounds
  • Checking parcel weights for international courier rates

LBS to KG Converter FAQ

How many kg is 1 pound?

Exactly 0.45359237 kg, or about 454 grams. Half a pound is about 227 g and a quarter pound about 113 g.

What is 150 lbs in kg?

150 lb is 68.04 kg. Nearby: 120 lb = 54.43 kg, 160 lb = 72.57 kg, 180 lb = 81.65 kg and 200 lb = 90.72 kg.

How do I convert lbs to kg in my head?

Halve the pounds, then take away a tenth of that: 150 lb halved is 75, minus 7.5 is 67.5 kg. The exact answer is 68.04 kg, so use the tool for anything that matters.

How many kg is a 5 lb protein tub?

5 lb is 2.268 kg. A 2 lb tub is 0.907 kg and a 10 lb bag is 4.536 kg.

How many grams is 8 oz?

8 ounces is 226.8 g, since an ounce is exactly 28.349523125 g. Choose Ounce as the From unit and Gram as the To unit to convert any ounce value.