Convert between pounds, ounces, and mixed lbs+oz. Three input modes, baby weight presets, pound breakdown bars, everyday items table, and reference chart.
Pounds and ounces are the standard US way to express everyday weights, especially for baby weights, food portions, and shipping labels. This page handles the two most common jobs: turning mixed pounds-and-ounces into a single value, or breaking a decimal pound back into pounds and ounces. That makes it useful whenever a weight shows up in the format that is easiest to say aloud but not the format you need for a form or a scale readout.
You can enter mixed lbs+oz, pounds only, or ounces only. The result includes total ounces, decimal pounds, mixed lbs+oz, grams, kilograms, and stones, with a visual breakdown bar for the pounds portion. It also keeps the common reference formats in view so you can move between US and metric labels without redoing the same math in different places.
Use it when a scale, label, or chart gives you one format but you need another. The conversion is most useful when you are comparing package weights or documenting a measurement for someone who prefers a different unit style.
Decimal pounds and mixed pounds-plus-ounces are both common in US usage, but they are awkward to convert by hand. This page keeps the arithmetic and the unit breakdown visible so the result is immediately usable. It is especially helpful when the next step is shipping, baby tracking, or a recipe note that needs both pounds and ounces spelled out.
total oz = (lbs × 16) + oz decimal lbs = total oz ÷ 16 1 oz = 28.3495 g
Result: 116 oz = 7.25 lbs = 3,289 g = 3.289 kg
7 × 16 + 4 = 116 oz. 116 ÷ 16 = 7.25 lbs. 116 × 28.35 = 3,289 g. Average newborn weight.
Pediatricians record baby weights in lbs + oz. Growth charts may use decimal pounds or kilograms. Converting between these formats is a daily task for new parents and nurses. Our presets include typical newborn weights for quick reference.
USPS, UPS, and FedEx all use different rounding rules. USPS First Class Mail charges per ounce (up to 13 oz). UPS charges per pound, rounding up. Knowing the exact oz-to-lbs conversion helps you choose the cheapest shipping method.
Meat counters weigh in decimal pounds (e.g., 2.34 lbs), but recipes call for "2 and a third pounds" or "37 ounces." This calculator bridges all three representations so you can portion accurately and scale recipes up or down.
4 ÷ 16 = 0.25, so 7 lb 4 oz = 7.25 lbs. That same approach works for any mixed pound-and-ounce value.
0.75 × 16 = 12 oz, so 3.75 lbs = 3 lb 12 oz. The whole number stays as pounds and the decimal part becomes ounces.
About 7 lb 5 oz (3.3 kg). The normal range is wider, so the exact number depends on age, gestation, and the measurement time.
80 ounces (5 × 16). That is the same ratio the converter uses for every pounds-to-ounces calculation.
1 stone = 14 pounds. It is still used in the UK for body weight and a few other human-scale measurements.
Add ounces separately. If oz is 16 or more, carry 1 to pounds, so 3 lb 12 oz + 2 lb 9 oz becomes 6 lb 5 oz.