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Millinewtons to Newtons Converter

Enter the force in millinewtons below to convert it to newtons.

Convert Millinewtons to Newtons

Enter a value in millinewtons (mN) to convert to newtons (N).

Result
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0.005newtons
5 mN = 0.005 N
Result updates automatically
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Suggested Conversions
Reference:NIST SP 811 (NIST SP 811 App. B.9 (Force))
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Millinewton to Newton Conversion Table

Table showing various millinewton measurements converted to newtons. Click any preset value or arrow to load it into the converter.

Millinewtons (mN)Newtons (N)
1 mN0.001 N
2 mN0.002 N
2.5 mN0.0025 N
5 mN0.005 N
10 mN0.01 N
15 mN0.015 N
20 mN0.02 N
25 mN0.025 N
30 mN0.03 N
50 mN0.05 N

How to Convert Millinewtons to Newtons

To convert millinewtons to newtons, multiply the force by the following conversion ratio: 0.001 newtons/millinewton.

Since one millinewton is equal to 0.001 newtons, you can use this simple formula to convert:

newtons = millinewtons × 0.001

The force in newtons is equal to the force in millinewtons multiplied by 0.001.

For example, here's how to convert 5 millinewtons to newtons using the formula above.

newtons = (5 mN × 0.001) = 0.005 N

How Many Newtons Are in a Millinewton?

There are 0.001 newtons in a millinewton, which is why we use this value in the formula above.

1 mN = 0.001 N|1 N = 1,000 mN

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

Millinewtons and newtons are both units used to measure force. Keep reading to learn more about each unit.

What Is a Millinewton?

A millinewton is a unit of force equal to 1/1,000 of a newton (0.001 N). One-thousandth of a Newton. [1]

The millinewton is classified as a metric and SI-compatible unit of force. Millinewtons can be abbreviated as mN; for example, 1 millinewton can be written as 1 mN.

In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the millinewton (mN) a convenient decimal multiple of the newton (N).

In practice, millinewtons (mN) are widely used across fine-tolerance laboratory, analytical, and micro-scale force measurements within SI metric workflows, engineering documentation, and technical data sheets.

What Is a Newton?

Coherent SI unit of force (1 kg·m/s² = 1 J/m). It serves as a primary reference unit for measuring force across scientific and practical applications. [2]

The newton is classified as an International System of Units (SI) unit of force. Newtons can be abbreviated as N; for example, 1 newton can be written as 1 N.

As the primary coherent reference unit for force in this category, all other force units are mathematically anchored to the newton (N).

In practice, newtons (N) are widely used across standard force applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.

When converting force between millinewtons (mN) and newtons (N), keep full floating-point precision (1 mN = 0.001 N; 1 N = 1,000 mN) during intermediate calculations and round only the final newton figure to match your instrument tolerance.

More Millinewton & Newton Conversions

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

Frequently Asked Questions

There are 0.001 newtons (N) in 1 millinewton (mN). Conversely, 1 newton (N) is equal to 1,000 millinewtons (mN).

References

NIST · BIPM · ISO
  1. [1]
    NIST SP 811 (NIST SP 811 App. B.9 (Force))·Force Metrology Standard — Millinewtons (mN) to Newtons (N)
    NIST SP 811 Standard
  2. [2]
    NIST CUU (Derived SI Unit: Newton (N))·Unit Specifications: Millinewton (mN) & Newton (N)
    NIST CUU Specification
  3. [3]
    BIPM (SI Brochure (9th Ed.) — Force)·Conversion Factors & Mathematical Basis (mN to N)
    BIPM Reference
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