Pounds and Ounces Calculator
Convert between pounds and ounces — combine lb + oz into total ounces and vice versa, with metric conversions included.
Reviewed October 7, 2026 Runs in your browser — inputs are never stored
Total ounces
88.0000 oz
Decimal lb
5.5000 lb
Kilograms
2.4948 kg
Grams
2494.76 g
This tool provides general unit conversions for everyday and educational use. For regulated, legal, or scientific applications, verify conversion factors against the applicable official standard.
About the Pounds and Ounces Calculator
The pounds and ounces calculator converts weights written as pounds plus ounces into total ounces and metric units, and splits a total in ounces back into pounds and ounces. One pound is exactly 16 ounces. It is useful for baby weights, postage, recipes and fishing records, which are often given in this mixed format.
How to use it
- 1Choose to combine pounds and ounces or split a total in ounces.
- 2Enter the pounds and ounces (or the total ounces).
- 3Read the result and its equivalent in grams and kilograms.
- 4Copy, share or print the result with the buttons below it.
Worked example
5 lb 8 oz = 5 × 16 + 8 = 88 oz, which is about 2.49 kg. A 1.2 kg baby weighs about 2 lb 10.3 oz.
How it works
Formula
Total oz = Pounds × 16 + Ounces
Pounds = floor(Total oz ÷ 16), Ounces = Total oz mod 16
Reference
1 pound = 16 ounces (avoirdupois, exactly). 1 ounce = 28.3495 g.
Common use cases
- Converting birth weights
- Weighing parcels for postage
- Recording catch weights
Frequently asked questions
A:2.5 lb × 16 = 40 oz.
A:23 ÷ 16 = 1.4375 lb = 1 lb 7 oz.
Reviewed for accuracy · Last updated October 7, 2026
Conversion factors are based on internationally defined SI units and standard metric/imperial equivalence tables.
CalcWisee Editorial Team
Calculator development and formula review
CalcWisee is an independent site founded by Ayman. Every calculator is built from a published formula or official definition, tested against hand-worked examples before it goes live, and corrected promptly when a reader reports an issue to ayman@calcwisee.com.
Expertise: Financial mathematics, Health and fitness formulas, Applied mathematics, Unit conversion standards
References & sources
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