1) Pounds + Ounces Converter
Enter a weight in pounds and ounces to get total ounces, decimal pounds, kilograms, and grams.
2) Ounces to Pounds + Ounces
Useful when a scale shows only ounces.
3) Kilograms to Pounds + Ounces
Great for converting metric package weights into imperial units.
How to use this pounds and ounces calculator
This calculator is designed for everyday weight conversions. You can switch between common formats quickly:
- Pounds + ounces to decimal pounds, total ounces, kilograms, and grams
- Total ounces to a readable pounds-and-ounces format
- Kilograms to pounds and ounces
It is especially useful for cooking, shipping, fitness tracking, and any situation where you need to move between imperial and metric units.
Understanding pounds and ounces
In the imperial system, weight is often written as pounds and ounces. The key relationship is simple:
- 1 pound (lb) = 16 ounces (oz)
So if you have 3 lb 8 oz, that means 3 full pounds plus 8 extra ounces.
Core formulas
- Total ounces = (pounds × 16) + ounces
- Decimal pounds = total ounces ÷ 16
- Kilograms = total ounces × 0.028349523125
- Grams = kilograms × 1000
Example conversions
Example 1: 7 lb 10 oz
Convert to total ounces: (7 × 16) + 10 = 122 oz.
Convert to decimal pounds: 122 ÷ 16 = 7.625 lb.
Convert to metric: 122 × 0.028349523125 ≈ 3.4586 kg (3458.6 g).
Example 2: 90 oz
To convert ounces back to pounds and ounces, divide by 16:
90 oz = 5 lb 10 oz, since 5 × 16 = 80 and 90 - 80 = 10.
Example 3: 4.2 kg
Convert kg to ounces first, then split into pounds and ounces:
4.2 kg ÷ 0.028349523125 ≈ 148.15 oz = 9 lb 4.15 oz.
Tips for accurate results
- Use decimals when needed (for example, 3.5 oz).
- If you only know ounces, use the ounces-only converter section.
- If you receive metric values from labels, use the kg converter for fast translation.
- For shipping or nutrition labels, round only at the final step.
Where this calculator is useful
- Cooking and baking: converting recipe ingredients between unit systems.
- Postal and shipping: checking package weight limits.
- Health and fitness: logging food portions or bodyweight changes.
- Retail and e-commerce: listing products in both imperial and metric formats.
Frequently asked questions
Can ounces be more than 16?
Yes. The calculator accepts values above 16 and automatically normalizes the result into pounds and remaining ounces.
Does this work with decimal ounces?
Yes. You can enter values like 2.5 oz or 19.75 oz and the output will stay precise.
What rounding is used?
Results are displayed with practical decimal precision so they are easy to read while still accurate for daily use.