Microsecond to Millisecond Converter
Convert microseconds to milliseconds with our free online time converter.
Quick Answer
1 Microsecond = 0.001 milliseconds
Formula: Microsecond × conversion factor = Millisecond
Use the calculator below for instant, accurate conversions.
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All conversion formulas on UnitsConverter.io have been verified against NIST (National Institute of Standards and Technology) guidelines and international SI standards. Our calculations are accurate to 10 decimal places for standard conversions and use arbitrary precision arithmetic for astronomical units.
Microsecond to Millisecond Calculator
How to Use the Microsecond to Millisecond Calculator:
- Enter the value you want to convert in the 'From' field (Microsecond).
- The converted value in Millisecond will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Time category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Microsecond to Millisecond: Step-by-Step Guide
Converting Microsecond to Millisecond involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Microsecond = 0.001 millisecondsExample Calculation:
Convert 60 microseconds: 60 × 0.001 = 0.06 milliseconds
Disclaimer: For Reference Only
These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.
Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.
Need to convert to other time units?
View all Time conversions →What is a Microsecond and a Millisecond?
A microsecond is a unit of time equal to one-millionth (1/1,000,000) of a second. It is also 1/1000th of a millisecond.
A millisecond is a unit of time equal to one-thousandth (1/1,000) of a second.
Note: The Microsecond is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Millisecond belongs to the imperial/US customary system.
History of the Microsecond and Millisecond
The microsecond is derived from the SI base unit, the second, using the metric prefix 'micro-', indicating a factor of 10⁻⁶. Its use became prevalent with the advent of electronic computers, radar technology, and high-speed photography.
The millisecond is derived from the SI base unit, the second, using the metric prefix 'milli-', indicating a factor of 10⁻³. Its common usage grew with the need for finer time measurements in science and technology, particularly in fields like computing and electronics.
Common Uses and Applications: microseconds vs milliseconds
Explore the typical applications for both Microsecond (imperial/US) and Millisecond (imperial/US) to understand their common contexts.
Common Uses for microseconds
- Computing: Measuring instruction execution times in older processors, interrupt latency, bus transfer times.
- Physics: Duration of certain chemical reactions, some nuclear events, timing in particle accelerators.
- Electronics: Defining pulse widths in digital signals, measuring signal delays in circuits.
- Biology: Duration of nerve impulses, time scale for certain enzymatic reactions.
- Everyday: The flash duration of a typical camera strobe is a few microseconds.
When to Use milliseconds
- Computing: Measuring network latency (ping times), hard drive seek times, human reaction times in psychological tests, frame duration in video (e.g., 60 fps is ~16.7 ms per frame).
- Audio: Measuring delays and processing times in audio signals.
- Sports: Timing in races where differences are extremely small (e.g., swimming, track and field).
- Science: Measuring short-duration events, such as the firing of a neuron or rapid chemical processes.
- User Interface: Often used as a target for response times in interactive systems (e.g., aiming for under 100 ms for a feeling of instant response).
Additional Unit Information
About Microsecond (μs)
How many microseconds are in one second?
There are 1,000,000 (one million) microseconds in a second.
How many microseconds are in one millisecond?
There are 1,000 microseconds in a millisecond.
What does the symbol μs mean?
The symbol 'μ' (mu) is the Greek letter used as the metric prefix for micro (10⁻⁶), and 's' stands for second.
About Millisecond (ms)
How many milliseconds are in one second?
There are 1,000 milliseconds in a second.
How many milliseconds are in one minute?
There are 60,000 milliseconds in a minute (1000 ms/s * 60 s/min).
Is a millisecond a long time for a computer?
In computing terms, a millisecond can be quite long. Processors perform millions of operations in a millisecond. Network latency is often measured in tens or hundreds of milliseconds.
Conversion Table: Microsecond to Millisecond
| Microsecond (μs) | Millisecond (ms) |
|---|---|
| 0.5 | 0.001 |
| 1 | 0.001 |
| 1.5 | 0.002 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1,000 | 1 |
People Also Ask
How do I convert Microsecond to Millisecond?
To convert Microsecond to Millisecond, enter the value in Microsecond in the calculator above. The conversion will happen automatically. Use our free online converter for instant and accurate results. You can also visit our time converter page to convert between other units in this category.
Learn more →What is the conversion factor from Microsecond to Millisecond?
The conversion factor depends on the specific relationship between Microsecond and Millisecond. You can find the exact conversion formula and factor on this page. Our calculator handles all calculations automatically. See the conversion table above for common values.
Can I convert Millisecond back to Microsecond?
Yes! You can easily convert Millisecond back to Microsecond by using the swap button (⇌) in the calculator above, or by visiting our Millisecond to Microsecond converter page. You can also explore other time conversions on our category page.
Learn more →What are common uses for Microsecond and Millisecond?
Microsecond and Millisecond are both standard units used in time measurements. They are commonly used in various applications including engineering, construction, cooking, and scientific research. Browse our time converter for more conversion options.
For more time conversion questions, visit our FAQ page or explore our conversion guides.
Helpful Conversion Guides
Learn more about unit conversion with our comprehensive guides:
All Time Conversions
Other Time Units and Conversions
Explore other time units and their conversion options:
- Second (s) • Microsecond to Second
- Minute (min) • Microsecond to Minute
- Hour (h) • Microsecond to Hour
- Day (d) • Microsecond to Day
- Week (wk) • Microsecond to Week
- Month (mo) • Microsecond to Month
- Year (yr) • Microsecond to Year
- Nanosecond (ns) • Microsecond to Nanosecond
- Decade (dec) • Microsecond to Decade
- Century (c) • Microsecond to Century
Verified Against Authority Standards
All conversion formulas have been verified against international standards and authoritative sources to ensure maximum accuracy and reliability.
National Institute of Standards and Technology — Official time standards and definitions
Bureau International des Poids et Mesures — Definition of the SI base unit for time
Last verified: December 3, 2025