How do you convert pounds-force to ounces-force?

To convert pounds-force (lbf) to ounces-force (ozf), multiply the measurement in pounds-force by 16 (ounces-force = pounds-force × 16).

What is 5 pounds-force in ounces-force?

5 pounds-force (5 lbf) is equal to 80 ounces-force (80 ozf).

Which is larger, 1 pound-force (lbf) or 1 ounce-force (ozf)?

One pound-force (lbf) is larger than one ounce-force (ozf). Specifically, 1 lbf contains 16 ozf, whereas 1 ozf is 0.0625 lbf.

How do I convert back from ounces-force (ozf) to pounds-force (lbf)?

To reverse the calculation from ozf to lbf, multiply your ounce-force value by the inverse factor 0.0625 (or divide by 16). You can also click the Swap button in the tool above to flip directions in one click.

How many decimal places should I round lbf to ozf results to?

For everyday comparisons and quick estimates, rounding to 2 decimal places is usually sufficient (for example, 5 lbf ≈ 80.00 ozf). For engineering, laboratory, or machining specifications, select 4 or 6 decimals—or Scientific (10ⁿ) mode—in the calculator toolbar above.

Pounds-force to Ounces-force Converter

Enter the force in pounds-force below to convert it to ounces-force.

Ounces-force to Pounds-force (ozf → lbf)

Convert Pounds-force to Ounces-force

Enter a value in pounds-force (lbf) to convert to ounces-force (ozf).

Value (lbf)

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Result

•

80ounces-force

5 lbf = 80 ozf

Result updates automatically

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Suggested Conversions

Reference:NIST SP 811 (NIST SP 811 App. B.9 (Force))

[1–3] ↓

Pound-force to Ounce-force Conversion Table

Table showing various pound-force measurements converted to ounces-force. Click any preset value or arrow to load it into the converter.

Pounds-force (lbf)	Ounces-force (ozf)
1 lbf	16 ozf
2 lbf	32 ozf
2.5 lbf	40 ozf
5 lbf	80 ozf
10 lbf	160 ozf
15 lbf	240 ozf
20 lbf	320 ozf
25 lbf	400 ozf
30 lbf	480 ozf
50 lbf	800 ozf

How to Convert Pounds-force to Ounces-force

To convert pounds-force to ounces-force, multiply the force by the following conversion ratio: 16 ounces-force/pound-force.

Since one pound-force is equal to 16 ounces-force, you can use this simple formula to convert:

ounces-force = pounds-force × 16

The force in ounces-force is equal to the force in pounds-force multiplied by 16.

For example, here's how to convert 5 pounds-force to ounces-force using the formula above.

ounces-force = (5 lbf × 16) = 80 ozf

How Many Ounces-force Are in a Pound-force?

There are 16 ounces-force in a pound-force, which is why we use this value in the formula above.

1 lbf = 16 ozf|1 ozf = 0.0625 lbf

Our pound-force to ounce-force calculator automatically converts your force measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

Pounds-force and ounces-force are both units used to measure force. Keep reading to learn more about each unit.

What Is a Pound-force?

A pound-force is a unit of force equal to 4.4482216 newtons (N), the base unit for force. Gravitational force on 1 pound mass (4.44822 N). [1]

The pound-force is classified as a US customary and imperial unit of force. Pounds-force can be abbreviated as lbf; for example, 1 pound-force can be written as 1 lbf.

When working with pounds-force (lbf) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.

In practice, pounds-force (lbf) are widely used across standard force applications within US customary and imperial workflows, engineering documentation, and technical data sheets.

Learn more about pounds-force in our Force Converter.

What Is an Ounce-force?

An ounce-force is a unit of force equal to 0.2780139 newtons (N), the base unit for force. 1/16 of a pound-force (0.278014 N). [2]

The ounce-force is classified as a US customary and imperial unit of force. Ounces-force can be abbreviated as ozf; for example, 1 ounce-force can be written as 1 ozf.

When working with ounces-force (ozf) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.

In practice, ounces-force (ozf) are widely used across standard force applications within US customary and imperial workflows, engineering documentation, and technical data sheets.

Learn more about ounces-force in our Force Converter.

When converting force between pounds-force (lbf) and ounces-force (ozf), keep full floating-point precision (1 lbf = 16 ozf; 1 ozf = 0.0625 lbf) during intermediate calculations and round only the final ounce-force figure to match your instrument tolerance.

More Pound-force & Ounce-force Conversions

Need to calculate in the opposite direction? Use our ounces-force to pounds-force calculator to switch your starting unit immediately. You can also explore related tools such as converting ounces-force to pounds-force, converting pounds-force to newtons, or converting newtons to pounds-force.

Convert from Pounds-force

Convert to Ounces-force

Frequently Asked Questions

There are 16 ounces-force (ozf) in 1 pound-force (lbf). Conversely, 1 ounce-force (ozf) is equal to 0.0625 pounds-force (lbf).

Force Converter

Quick Info

Direct Factor: 1 pound-force (lbf) equals 16 ounces-force (ozf).
Inverse Factor: 1 ounce-force (ozf) equals 0.0625 pounds-force (lbf).
Formula: ounces-force = pounds-force × 16.
Verified Precision: Anchored to official NIST SP 811 and ISO/IEC 80000 standards.

Units Comparison

Pound-force (lbf)

Gravitational force on 1 pound mass (4.44822 N).

Ounce-force (ozf)

1/16 of a pound-force (0.278014 N).

Newton (N)

Coherent SI unit of force (1 kg·m/s² = 1 J/m).

References

[1]NIST SP 811 · NIST SP 811 App. B.9 (Force)
Source
[2]NIST CUU · Derived SI Unit: Newton (N)
Source
[3]BIPM · SI Brochure (9th Ed.) — Force
Source

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References

NIST · BIPM · ISO

[1]
NIST SP 811 (NIST SP 811 App. B.9 (Force))·Force Metrology Standard — Pounds-force (lbf) to Ounces-force (ozf)
NIST SP 811 Standard
[2]
NIST CUU (Derived SI Unit: Newton (N))·Unit Specifications: Pound-force (lbf) & Ounce-force (ozf)
NIST CUU Specification
[3]
BIPM (SI Brochure (9th Ed.) — Force)·Conversion Factors & Mathematical Basis (lbf to ozf)
BIPM Reference

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