Converting Microseconds to Milliseconds
Microseconds (µs) are used in high-precision timing contexts. Converting to milliseconds makes these measurements more relatable while maintaining useful precision.
The conversion: 1,000 microseconds = 1 millisecond.
Technical Applications
- CPU profiling - Function execution times
- Network latency - Ping and round-trip times
- Database queries - Query execution timing
- Audio processing - Sample timing precision
- Scientific instruments - Measurement intervals
Reference Table
| Microseconds | Milliseconds |
|---|---|
| 100 | 0.1 |
| 500 | 0.5 |
| 1,000 | 1.0 |
| 5,000 | 5.0 |
| 10,000 | 10.0 |
| 100,000 | 100.0 |
How to Convert Microseconds to Milliseconds
Steps
- Enter microseconds from your profiler
- See milliseconds for easier interpretation
- Analyze your performance data
The Formula
Milliseconds = Microseconds ÷ 1,000
Examples
- 2,500 µs: 2,500 ÷ 1,000 = 2.5 ms
- 150 µs: 150 ÷ 1,000 = 0.15 ms
- 50,000 µs: 50,000 ÷ 1,000 = 50 ms
Performance Context
- < 100 µs = Very fast operation
- 100-1000 µs = Fast (sub-millisecond)
- 1000+ µs = Consider optimization
Features
Precision Conversion
Clean division by 1,000 for accurate results.
Instant Results
Milliseconds appear immediately as you type.
Bidirectional
Swap to convert milliseconds to microseconds.
Copy Ready
Copy for performance reports or documentation.
Reference Table
Common µs-to-ms conversions displayed.
Engineering Uses
- Benchmarking - Code optimization
- Networking - Latency analysis
- Electronics - Signal timing
Frequently Asked Questions
How many milliseconds is 1000 microseconds?
1,000 microseconds equals exactly 1 millisecond.
What is the symbol for microsecond?
The symbol is µs (Greek letter mu + s). Sometimes written as "us" when µ isn't available.
How fast is 100 microseconds?
100 µs = 0.1 ms = 0.0001 seconds. This is very fast - a typical memory access time.
When do I use microseconds vs milliseconds?
Use µs for hardware timing, CPU operations, and high-precision measurements. Use ms for user-facing metrics and general performance.
What can happen in 1 microsecond?
Light travels about 300 meters. A CPU can execute several instructions. Sound travels about 0.3mm.
How do I measure microseconds in code?
Use high-resolution timers like performance.now() in JavaScript, System.nanoTime() in Java, or time.perf_counter() in Python.
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