Converting Milliseconds to Microseconds
Real-time systems and embedded programming often require microsecond precision. Converting from milliseconds ensures accurate timer configurations.
The conversion: 1 millisecond = 1,000 microseconds.
Where Microseconds Matter
- Microcontrollers - Timer register configuration
- Real-time OS - Task scheduling precision
- Motor control - PWM signal timing
- Sensor sampling - ADC conversion timing
- Communication - Protocol bit timing
Reference Table
| Milliseconds | Microseconds |
|---|---|
| 0.1 | 100 |
| 0.5 | 500 |
| 1 | 1,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 100 | 100,000 |
How to Convert Milliseconds to Microseconds
Steps
- Enter milliseconds you want to convert
- See microseconds for precise timing
- Use in your embedded code or hardware config
The Formula
Microseconds = Milliseconds × 1,000
Examples
- 2.5 ms: 2.5 × 1,000 = 2,500 µs
- 0.1 ms: 0.1 × 1,000 = 100 µs
- 16.67 ms: 16.67 × 1,000 = 16,670 µs
Hardware Context
For a 1MHz timer clock:
- Each tick = 1 µs
- 1 ms delay = 1,000 ticks
Features
Exact Multiplication
Clean × 1,000 for precise timer values.
Instant Results
Microseconds appear as you type.
Reversible
Swap to convert µs to ms.
Copy Ready
Copy directly into code or documentation.
Reference Guide
Common conversions displayed.
Engineering Applications
- Arduino/ESP32 - delayMicroseconds()
- PLC programming - Scan cycle timing
- Oscilloscope - Timebase settings
Frequently Asked Questions
How many microseconds in 1 millisecond?
1 millisecond equals exactly 1,000 microseconds.
What is 0.5 milliseconds in microseconds?
0.5 ms equals 500 microseconds.
Why do embedded systems use microseconds?
Hardware timers and real-time operations need precision that milliseconds can't provide. A 1ms error can cause motor jitter or communication failures.
What is the Arduino delayMicroseconds limit?
Arduino's delayMicroseconds() works accurately for values up to about 16,383 µs. For longer delays, use delay() with milliseconds.
How precise are microsecond timers?
It depends on the hardware. Most microcontrollers can achieve sub-microsecond precision. PC-based timers may have higher jitter.
What is 16.67 ms in microseconds?
16.67 ms ≈ 16,670 µs. This is the frame time for 60fps video.
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