This converter turns microseconds into seconds instantly, using the exact factor 1 microsecond = 1e-06 seconds. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
One millionth of a second, the scale of memory latency. The SI base unit of time, defined by caesium-133 atomic transitions.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
microseconds- The amount you are converting, measured in microseconds
1e-06- The exact number of seconds in one microsecond
seconds- The converted result
How it works, step by step
- Enter the number of microseconds you want to convert.
- The value is multiplied by 1e-06, the exact conversion factor.
- The result is displayed in seconds, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 microseconds
Multiply 5 by 1e-06. That gives 0.000005 seconds. A quick sanity check: one microsecond is smaller than one second, so the number should get smaller — and it does.
Converting 72 microseconds
72 × 1e-06 = 0.000072 seconds. Working backwards, 0.000072 ÷ 1e-06 returns 72 microseconds, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many seconds are in one microsecond?
Exactly 1e-06. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert microseconds to seconds?
Seconds = microseconds × 1e-06. To reverse it, divide instead: microseconds = seconds ÷ 1e-06, which is the same as multiplying by 1000000.
Is the microsecond bigger than the second?
No. One microsecond is only 1e-06 of a second, so the second is the larger unit.
Why does my answer differ slightly from other microseconds to seconds converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a microsecond?
One millionth of a second, the scale of memory latency.
What is a second?
The SI base unit of time, defined by caesium-133 atomic transitions.
Microseconds to seconds reference table
| Microseconds | Seconds |
|---|---|
| 0.5 µs | 5.0000e-07 s |
| 1 µs | 0.000001 s |
| 2 µs | 0.000002 s |
| 3 µs | 0.000003 s |
| 5 µs | 0.000005 s |
| 10 µs | 0.00001 s |
| 15 µs | 0.000015 s |
| 20 µs | 0.00002 s |
| 25 µs | 0.000025 s |
| 50 µs | 0.00005 s |
| 75 µs | 0.000075 s |
| 100 µs | 0.0001 s |
| 250 µs | 0.00025 s |
| 500 µs | 0.0005 s |
| 1000 µs | 0.001 s |
Exact factor: 1 microsecond = 1e-06 seconds. Values rounded for display.