The millisecond
The millisecond (ms) equals one-thousandth of a second. It is the standard unit for software response times, network latency, and video frame timing — human reaction time is typically 200–300 ms.
Milliseconds to Microseconds Converter
1 ms = 1000 µs (millisecond → microsecond)
1 ms = 1000 µs
1 millisecond equals 1000 microseconds. To convert milliseconds to microseconds, multiply the millisecond value by 1000. For quick reference: 1 ms = 1000 µs, 5 ms = 5000 µs, 10 ms = 10000 µs, 100 ms = 100000 µs.
Formula
Microseconds = Milliseconds × 1000Quick
How to convert milliseconds to microseconds
Take your value
Start with your value in milliseconds.
Multiply by 1000
Multiply the millisecond value by 1000. This is the exact conversion factor from milliseconds to microseconds.
Read the result
The product is your value in microseconds. For example, 5 ms × 1000 = 5000 µs.
Conversion formula
The exact factor from milliseconds to microseconds is 1000.
Microseconds = Milliseconds × 1000
Milliseconds to Microseconds conversion table
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Milliseconds (ms) | Microseconds (µs) |
|---|---|
| 1 ms | 1000 µs |
| 2 ms | 2000 µs |
| 3 ms | 3000 µs |
| 4 ms | 4000 µs |
| 5 ms | 5000 µs |
| 6 ms | 6000 µs |
| 7 ms | 7000 µs |
| 8 ms | 8000 µs |
| 9 ms | 9000 µs |
| 10 ms | 10000 µs |
| 15 ms | 15000 µs |
| 20 ms | 20000 µs |
| 25 ms | 25000 µs |
| 30 ms | 30000 µs |
| 45 ms | 45000 µs |
| 60 ms | 60000 µs |
| 90 ms | 90000 µs |
| 100 ms | 100000 µs |
| 120 ms | 120000 µs |
| 150 ms | 150000 µs |
| 180 ms | 180000 µs |
| 240 ms | 240000 µs |
| 300 ms | 300000 µs |
| 360 ms | 360000 µs |
| 450 ms | 450000 µs |
| 500 ms | 500000 µs |
| 600 ms | 600000 µs |
| 750 ms | 750000 µs |
| 900 ms | 900000 µs |
| 1000 ms | 1000000 µs |
| 1200 ms | 1200000 µs |
| 1500 ms | 1500000 µs |
| 1800 ms | 1800000 µs |
| 2400 ms | 2400000 µs |
| 3000 ms | 3000000 µs |
| 3600 ms | 3600000 µs |
| 4500 ms | 4500000 µs |
| 6000 ms | 6000000 µs |
| 7200 ms | 7200000 µs |
| 9000 ms | 9000000 µs |
| 10000 ms | 10000000 µs |
| 18000 ms | 18000000 µs |
| 36000 ms | 36000000 µs |
| 43200 ms | 43200000 µs |
| 86400 ms | 86400000 µs |
| 172800 ms | 172800000 µs |
| 604800 ms | 604800000 µs |
| 1000000 ms | 1000000000 µs |
| 31557600 ms | 31557600000 µs |
| 100000000 ms | 100000000000 µs |
Real-world reference
A camera shutter might fire in 4 ms. A good website response time is under 200 ms. In microseconds, that gives you: 1 ms = 1000 µs, 10 ms = 10000 µs, 100 ms = 100000 µs.
Frequently asked questions
- How many microseconds are in 1 millisecond?
- 1 millisecond equals 1000 microseconds.
- How do I convert milliseconds to microseconds?
- Multiply the millisecond value by 1000. So x ms × 1000 = the equivalent in µs.
- What is 5 milliseconds in microseconds?
- 5 milliseconds equals 5000 microseconds.
- What is 10 milliseconds in microseconds?
- 10 milliseconds equals 10000 microseconds.
- What is 100 milliseconds in microseconds?
- 100 milliseconds equals 100000 microseconds.
- How do I convert back from microseconds to milliseconds?
- Multiply the microsecond value by 0.001. For example, 1 µs = 0.001 ms.
- Is the millisecond bigger than the microsecond?
- Yes. 1 millisecond is larger than 1 microsecond — specifically 1000 times larger.
- Are these conversion factors exact?
- The factor is derived directly from the SI definitions of millisecond and microsecond; the displayed value is rounded for readability, and the browser computes using IEEE 754 double-precision arithmetic.
About the millisecond and the microsecond
The microsecond
The microsecond (µs) equals one-millionth of a second. It is the working unit for CPU clock cycles, memory access latency, and precise scientific timing instrumentation.