Pounds to Kilograms Converter

Weight conversion workspace

Enter a decimal, fraction or quick calculation — for example 12.5, 3/8 or (12*4)+6.5.

Batch conversionconvert up to 100 values at once

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Compare all weight units

One input, every supported equivalent. Select any row as the main target.

6 units
Equivalent weight values in every supported unit
UnitEquivalentTarget action
Kilograms kg0.45Target
Pounds lb1Source
Grams g453.59
Metric Tonnes t4.54E-4
Ounces oz16
Stone (14 lb) st0.07

Use this pound-to-kilogram reference when translating body weight, luggage, gym equipment or packaged goods into metric mass units.

Curated reference

Formula

kilograms = pounds × 0.45359237

Calculations use the central unit catalog and preserve precision until the result is formatted.

Reference conversions

Fixed reference values use en-US formatting and up to 12 significant digits.

Pounds to Kilograms example conversions
InputFromToResult
1PoundsKilograms0.45359237
5PoundsKilograms2.26796185
10PoundsKilograms4.5359237
25PoundsKilograms11.33980925
100PoundsKilograms45.359237
200PoundsKilograms90.718474

Related weight conversions

Curated references with worked examples, formulas and the full interactive converter.

View all weight units
Kilograms to PoundsGrams to OuncesStone to Kilograms

Frequently asked questions

How do I convert pounds to kilograms?

Use kilograms = pounds × 0.45359237. Enter a value in the calculator to keep full numeric precision until the result is formatted.

What is 1 lb in kg?

1 lb equals 0.45359237 kg.

Are the displayed results rounded?

The conversion uses the sourced catalog definitions and retains full JavaScript number precision until display formatting is applied.

Accuracy & transparency

Sources & methodology

Calculations keep full numeric precision until display formatting. These references describe the definitions, variants or factors used; links do not imply affiliation.

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