Microsecond is 0.000001 second units.
Microseconds to Attoseconds Converter — us to as
Convert Microsecond (us) to Attosecond (as) using the exact conversion factor (1 microsecond = 1,000,000,000,000 attosecond). See the formula, worked examples, and conversion table.
Microseconds to Attoseconds converter
Converter
Time Converter
Convert SI time, civil time, historical durations, months, and years.
Context values
Some unit families need one extra value for a physically accurate result.
Attosecond is 1e-18 second units.
Result = input x 1e-6 / 1e-18.
Months and years use the average Gregorian year.
Reserved above the conversion cards and below the converter.
About Converting Microseconds to Attoseconds
Microsecond and Attosecond are both everyday units of duration, and converting between them is one of the most routine calculations there is — scheduling, project planning, and billing all depend on it. Specifically: Microsecond is 0.000001 second units, and attosecond is 1e-18 second units.
Formula
attoseconds = microseconds × 1000000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 microsecond equals 0.000001 base units, and 1 attosecond equals 1e-18 base units, so dividing one by the other gives the direct microsecond-to-attosecond factor of 1000000000000.
Simple example
1 us × 1000000000000 = 1,000,000,000,000 as
1 microsecond = 1,000,000,000,000 attoseconds.
Real-world example
24 us × 1000000000000 = 2.4e+13 as
24 microseconds = 2.4e+13 attoseconds.
Conversion table
| Microsecond (us) | Attosecond (as) |
|---|---|
| 1 us | 1,000,000,000,000 as |
| 7 us | 7e+12 as |
| 24 us | 2.4e+13 as |
| 30 us | 3e+13 as |
| 100 us | 1e+14 as |
| 365 us | 3.65e+14 as |
Reverse conversion: Attosecond to Microsecond
1 as × 1e-12 = 1e-12 us
1 attosecond = 1e-12 microseconds.
microseconds = attoseconds × 1e-12
For a page dedicated to this direction, see Attosecond to Microsecond.
Understanding the Microsecond (us)
Microsecond is 0.000001 second units.
Understanding the Attosecond (as)
Attosecond is 1e-18 second units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many attoseconds are in 1 microsecond?
1 microsecond equals 1,000,000,000,000 attoseconds, using the exact defined conversion factor rather than an estimate.
How do I convert microsecond to attosecond?
Multiply the microsecond value by 1000000000000. The converter above does this instantly to whatever precision you set.
How do I convert attosecond back to microsecond?
Use the reverse factor: 1 attosecond equals 1e-12 microseconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a microsecond?
Microsecond (us) is a unit of time.
What is a attosecond?
Attosecond (as) is a unit of time.
Is the microsecond to attosecond conversion exact?
Yes. Both microsecond and attosecond are defined by fixed standards rather than physical artifacts, so the factor of 1000000000000 used above is exact to as many digits as you choose to display.