How do I convert ms to ns?

Use the formula shown above or enter a value to see ms converted to ns instantly.

What is the formula for ms to ns?

The converter calculates ns by applying the category-specific conversion factor for Time.

When should I use ms vs ns?

ms and ns are both part of the Time category; pick the unit that matches your measurement context (e.g., scale, region, or industry standard).

Time Conversion Reference

Convert ms to ns

Use the live converter below to translate between Millisecond (ms) and Nanosecond (ns). Scroll further for quick examples, formula tips, and related units.

Formula insight: Most unit conversions use a simple multiplication or division by a conversion factor. The calculator shows the exact formula used.

Convert

ms → ns

Millisecond

Nanosecond

1,000,000

Rounded result (4 decimals max)

Formula

1 ms = 1,000,000 ns

Conversion sourcesTap or click to view references

The International System of Units (SI) — NIST Special Publication 330
National Institute of Standards and Technology (NIST). The SI Brochure (SP 330) is the definitive English edition of the BIPM SI tables. NIST’s edition lists the official constants and conversion factors tying inch-pound units to SI, which SwapUnits applies for length, mass, temperature, pressure, volume, and related conversions. See /standards/nist-si-tenfold for the complete decimal multiple/submultiple table. View source · View SI table

Results update as you type. Swap the direction to convert back from ns to ms.

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ms to ns quick table

Multiply any row by the same factor to scale results. Use the converter above to enter exact values with your own units.

Millisecond (ms)	Nanosecond (ns)
0.25 ms	250,000 ns
0.5 ms	500,000 ns
1 ms	1,000,000 ns
2 ms	2,000,000 ns
5 ms	5,000,000 ns
10 ms	10,000,000 ns
25 ms	25,000,000 ns
100 ms	100,000,000 ns

ns back to ms

Keep the reciprocal handy when double-checking calculations or undoing a conversion.

Nanosecond (ns)	Millisecond (ms)
0.25 ns	0 ms
0.5 ns	0 ms
1 ns	0 ms
2 ns	0 ms
5 ns	0 ms
10 ns	0 ms
25 ns	0 ms
100 ns	0.0001 ms

Explore more time conversion reference

ms → fs

Convert into Femtosecond without leaving SwapUnits.

ms → ps

Convert into Picosecond without leaving SwapUnits.

ms → µs

Convert into Microsecond without leaving SwapUnits.

ms → s

Convert into Second without leaving SwapUnits.

ms → min

Convert into Minute without leaving SwapUnits.

ms → h

Convert into Hour without leaving SwapUnits.

Compare all time conversion reference

View the full unit roster, charts, and tips for Time Conversion Reference conversions.

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