Newtons to Millinewtons Converter
Enter the force in newtons below to convert it to millinewtons.
Convert Newtons to Millinewtons
Enter a value in newtons (N) to convert to millinewtons (mN).
Newton to Millinewton Conversion Table
Table showing various newton measurements converted to millinewtons. Click any preset value or arrow to load it into the converter.
How to Convert Newtons to Millinewtons
To convert newtons to millinewtons, multiply the force by the following conversion ratio: 1,000 millinewtons/newton.
Since one newton is equal to 1,000 millinewtons, you can use this simple formula to convert:
The force in millinewtons is equal to the force in newtons multiplied by 1,000.
For example, here's how to convert 5 newtons to millinewtons using the formula above.
How Many Millinewtons Are in a Newton?
There are 1,000 millinewtons in a newton, which is why we use this value in the formula above.
Our newton to millinewton calculator automatically converts your force measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Newtons and millinewtons are both units used to measure force. Keep reading to learn more about each unit.
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. [1]
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.
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. [2]
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.
When converting force between newtons (N) and millinewtons (mN), keep full floating-point precision (1 N = 1,000 mN; 1 mN = 0.001 N) during intermediate calculations and round only the final millinewton figure to match your instrument tolerance.
More Newton & Millinewton Conversions
Need to calculate in the opposite direction? Use our millinewtons to newtons calculator to switch your starting unit immediately. You can also explore related tools such as converting millinewtons to newtons, converting newtons to pounds-force, or converting newtons to kilograms-force.
Convert from Newtons
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Force))·Force Metrology Standard — Newtons (N) to Millinewtons (mN)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Newton (N))·Unit Specifications: Newton (N) & Millinewton (mN)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Force)·Conversion Factors & Mathematical Basis (N to mN)