Kg to Lbs Online Converter – Kilograms to Pounds

Convert mass from the SI unit kilogram (kg) to the international avoirdupois pound (lb). Uses the exact legal definition 1 lb = 0.45359237 kg, widely adopted in the US customary and British imperial systems. Abbreviations in use: kilogram = kg; pound (avoirdupois) = lb; ounce (avoirdupois) = oz (16 oz = 1 lb).

Share this?

Copy link ✓

How to use

1. Enter a value in kilograms in the input field.
2. (Optional) Set Decimal Places to control rounding in the result.
3. Click Convert to compute pounds (lb); the calculation line shows the factor used.
4. Click Copy Result to put the number on your clipboard.
5. Use Clear All to reset inputs and outputs.
6. Swap button opens the inverse calculator (lb → kg) via your link.

Definitions of measurement units

Kilogram (kg) — Base unit of mass in the International System of Units (SI). Defined by fixing the Planck constant h to 6.62607015×10⁻³⁴ J·s, which sets the kilogram via fundamental constants. System: SI. Abbreviation: kg. Exact relation in this converter: 1 kg = 2.20462262185 lb; 1 kg = 1000 g; commonly compared SI⇄imperial pair: 1 kg ≈ 35.27396195 oz (avoirdupois).

Pound (lb, avoirdupois) — Unit of mass in US customary and British imperial systems. Legally defined as exactly 0.45359237 kg; divided into 16 avoirdupois ounces (oz). System: Imperial/US customary. Abbreviations: lb, oz. Exact relations in this converter: 1 lb = 0.45359237 kg and 1 lb = 16 oz.

1 kg is roughly 2+ times the weight of 1 lbs – easy to remember

Conversion formula

lb = kg × 2.20462262185

kg = lb × 0.45359237

Sources: NIST states the international avoirdupois pound is defined as exactly 0.45359237 kg (see document reference). The SI definition of the kilogram is given by the Bureau International des Poids et Mesures (BIPM).

Source links: NIST: “In this system, the avoirdupois pound (lb) is … exactly 0.45359237 kg.”; BIPM: SI base unit — kilogram.

Conversion table

Real-world examples (fixed, regulation or standardized masses)

• Calibration weight: 1 kg = 2.20 lb
• Olympic plate: 5 kg = 11.02 lb
• Olympic plate: 10 kg = 22.05 lb
• Women’s Olympic barbell: 15 kg = 33.07 lb
• Men’s Olympic barbell: 20 kg = 44.09 lb
• Shot put (men, senior): 7.26 kg = 16.01 lb
• Shot put (women, senior): 4 kg = 8.82 lb
• Discus (men, senior): 2 kg = 4.41 lb
• Kettlebell (standard): 24 kg = 52.91 lb
• Kettlebell (standard): 32 kg = 70.55 lb

What’s your use case for kg → lb? Would you like us to make any other tools? Tell us in the comments.

CalcuLife.com