Pounds and Ounces Calculator

Convert a weight in pounds and ounces to kilograms, grams, and total ounces, or convert kilograms back into pounds and ounces. Great for baby weights and parcels.

In metric

3.4 kg

Grams—

Total ounces—

Total pounds—

How it works

Pounds and ounces combine into a single weight by converting the pounds to ounces (×16) and adding the ounces. One pound is 0.453592 kg, so the metric conversion follows directly.

total ounces = pounds × 16 + ounces
kg = pounds × 0.453592 + ounces × 0.0283495

Worked example

7 lb 8 oz is (7 × 16 + 8) = 120 oz, which is 120 × 0.0283495 = 3.40 kg.

Frequently asked questions

How do I convert pounds and ounces to kg?

Total ounces × 0.0283495. 7 lb 8 oz = 120 oz = 3.4 kg.

How many ounces are in a pound?

16 ounces.