Ounces to pounds converter

Convert ounces to pounds (oz to lbs) with the exact factor, a conversion chart and worked steps.

Drafted with AI writing toolsUpdated Checked examples: 3

oz
Try
Pounds
lb
Pounds: 1 lb
Significant figures: 12; Nearest, ties away from zero
Conversion
16 oz = 1 lb
1 lb in ounces
16oz

16 oz is about 1 lb. In the other direction, 1 lb ≈ 16 oz.

Ounces to pounds

01234204060ozlb16 → 1
Oz to lbs chart Rows: 13
OuncesPounds
10.0625
20.125
40.25
60.375
80.5
100.625
120.75
161
201.25
241.5
322
483
644
How it's calculated S
  1. Conversion factor

    1 oz=0.0625 lb1\ \text{oz} = 0.0625\ \text{lb}

    Exact by definition.

  2. Multiply

    16×0.0625=1 lb16 \times 0.0625 = 1\ \text{lb}

About the ounces to pounds converter

To convert ounces to pounds, multiply by 0.0625; to convert back, multiply by 16. For example, 16 oz is about 1 lb. Displayed factors and results may be rounded.

An ounce reading from a scale measures mass. It is suitable for an ingredient or parcel measured by weight, but a fluid-ounce mark on a bottle measures volume. You cannot exchange those two quantities without information about the substance's density.

In the avoirdupois system, 1 oz = 1/16 lb = 28.349523125 g. These values are exact.

Both units are defined exactly. Calculations use 50 significant digits and round only for display.

How to convert ounces to pounds

Divide the ounces by 16: lb = oz ÷ 16. So 24 oz = 1.5 lb, 8 oz = 0.5 lb and 48 oz = 3 lb. This works for weight ounces (avoirdupois), the ones on kitchen and postal scales and food packages. Fluid ounces measure volume and need a different conversion.

How to write ounces as pounds and ounces

A decimal answer such as 1.5 lb is not 1 lb 5 oz. To write a weight as pounds and ounces, divide by 16: the whole number is the pounds and the remainder is the ounces.

  • 54 oz: 3 × 16 = 48, remainder 6, so 3 lb 6 oz (3.375 lb)
  • 20 oz: 1 × 16 = 16, remainder 4, so 1 lb 4 oz (1.25 lb)
  • 100 oz: 6 × 16 = 96, remainder 4, so 6 lb 4 oz (6.25 lb)

Ounces to pounds chart

OuncesPounds
20.125
40.25
80.5
161
241.5
483

Comparing a package with a price per pound

When one product is labeled in ounces and another is priced per pound, convert the ounces first. A 24 oz package is 1.5 lb, so its price per pound is the package price divided by 1.5.

The unit price comparison calculator compares packs in ounces, pounds or grams side by side.

Fluid ounces and troy ounces

  • Fluid ounces (fl oz) measure volume, so a 16 fl oz bottle has no fixed weight in pounds; it depends on the contents. For volume, use US fluid ounces to milliliters.
  • Troy ounces (oz t) weigh precious metals and are heavier: 31.1034768 g against 28.349523125 g. A 100 oz t silver bar weighs 6.86 lb, not 6.25 lb. The weight converter includes troy ounces.

Both ounces have exact legal definitions. Gibraltar's Weight and Measures Act, Schedule 1, Part V defines the ounce as 1/16 pound, the pound as exactly 0.45359237 kg and the troy ounce as 480 grains.

Common mistakes

  • Dividing by 10. 24 oz is 1.5 lb, not 2.4 lb, because a pound has 16 ounces.
  • Multiplying instead of dividing. 16 oz would become 256 lb. The pound figure must be the smaller number.
  • Writing pounds and ounces as a decimal. 3 lb 6 oz is 3.375 lb, not 3.6 lb. Convert the whole weight to ounces first (3 × 16 + 6 = 54 oz), or type it as 3*16+6.

For the reverse step, use pounds to ounces. For metric weights, use ounces to grams.

Worked examples

16 oz to lb

Ounces (oz)
16 oz
Pounds
1 lb

Checked against: Exact-fraction computation from the legal unit definitions

8 oz to lb

Ounces (oz)
8 oz
Pounds
0.5 lb

Checked against: Exact-fraction computation from the legal unit definitions

48 oz to lb

Ounces (oz)
48 oz
Pounds
3 lb

Checked against: Exact-fraction computation from the legal unit definitions

Questions

How many pounds are in one ounce?

1 oz is about 0.0625 lb. In the avoirdupois system, 1 oz = 1/16 lb = 28.349523125 g. These values are exact.

How do I convert ounces to pounds?

Multiply by 0.0625: 16 oz × 0.0625 ≈ 1 lb. To convert back, divide by the same factor. The factor shown may be rounded.

How can I estimate ounces in pounds without a calculator?

Multiply by 0.062. This is 0.8% below the exact factor (about 0.0625), so 16 oz comes out as 0.992 lb instead of 1 lb.

About this calculator

lb=oz×0.0625\text{lb} = \text{oz} \times 0.0625

Sources

  1. NIST SP 811 (2008), Guide for the Use of the International System of Units, Appendix B
  2. NIST Handbook 44, Appendix C: General tables of units of measurement
  3. BIPM, The International System of Units (SI Brochure), 9th edition

Checked against references

This calculator includes 3 worked examples with independently sourced answers. They run in the test suite, and you can run them here too.

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