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Weight converter

Pick two weight units and type a number to see the answer with its formula.

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  • Sources checked Oct 2026
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The answer updates as you type.

1 kilogram =

2.20462lb

Also written as 2 lb 3.27 oz

Formula: lb = kg ÷ 0.45359237

Show the steps
  1. Definition: SI base unit of mass; 1 lb = 0.45359237 kg exactly
  2. 1 kg ÷ 0.45359237 = 2.20462 lb

Definitions used: SI base unit of mass; 1 lb = 0.45359237 kg exactly.

Source: NIST SP 811, Appendix B.8 and NIST Handbook 44 (2026), Appendix C, checked on .

Converting a whole column? Paste it all at once

Copy a column of kilograms from Excel or Google Sheets, paste it on the left and copy the pounds on the right back into your sheet. One result per line, in the same order.

5 values converted.

Pasted numbers like 1,234.5, 1.234,5 and 1 234,5 are read correctly whatever the option above; it only changes how the results are written. If you paste several columns, the first one is used. Everything runs in your browser; nothing you paste is sent anywhere.

1 kilogram in every weight unit

1 kilograms converted to each unit of weight
UnitValue
Milligrams (mg)1,000,000
Grams (g)1,000
Metric tons (t)0.001
Ounces (oz)35.274
Pounds (lb)2.20462
Stone (st)0.157473
Short tons (ton)0.00110231

The table follows the amount and the “From” unit you set in the converter above.

Popular weight conversions

How each weight unit is defined

These are the definitions the converter uses, as written in the source next to each one. Nothing is rounded before the calculation.

Definitions of weight units
UnitDefinitionIn kilograms
Milligram (mg)1 mg = 0.001 g (SI prefix milli)0.000001
Gram (g)1 g = 0.001 kg0.001
Kilogram (kg)SI base unit of mass1
Metric ton (t)1 t = 1000 kg1,000
Ounce (oz)1 oz = 28.349523125 g exactly (1/16 lb)0.02834952313
Pound (lb)1 lb = 0.45359237 kg exactly0.45359237
Stone (st)1 stone = 14 lb6.35029318
Short ton (ton)1 short ton = 2000 lb = 907.18474 kg907.18474

Weight conversion questions

How many pounds are in a stone?

A stone is 14 pounds, or 6.35029318 kg. It is used for body weight in the UK and Ireland.

What is the difference between a ton and a tonne?

A metric ton (tonne) is 1,000 kg. A US short ton is 2,000 lb, or 907.18474 kg, so the tonne is about 10% heavier.

Is weight the same as mass?

In physics, no: mass is the amount of matter and weight is a force. Kilograms, pounds and ounces are units of mass, and everyday “weight” on a scale is reported in them.

Can I convert a whole column of values at once?

Yes. Use the box under the converter: copy the column from Excel or Google Sheets, paste it on the left and copy the converted column from the right. Each result sits on the same line as its original value. A line that is not a number, such as a header, is left blank so the rows stay aligned. If you paste several columns, the first one is converted.

Other converters

Every category uses the same layout: type a number, pick two units.

Sources and limits

  • NIST SP 811, Appendix B.8

    NIST Special Publication 811, Guide for the Use of the SI, Appendix B.8: Factors for Units Listed Alphabetically (page updated August 18, 2025).

    National Institute of Standards and Technology. Edition or effective date: . Text in force when checked on .

  • NIST Handbook 44 (2026), Appendix C

    NIST Handbook 44-2026, Appendix C: General Tables of Units of Measurement.

    National Institute of Standards and Technology. Edition or effective date: . Text in force when checked on .

This is a calculation aid, not an official measurement service. Results are rounded to 6 significant digits for display. For trade, engineering, medical dosing or legal documents, confirm the figure in the official source. Nothing you type leaves your browser.