Nanosecond is 1e-9 second units.
Nanoseconds to Attoseconds Converter — ns to as
Convert Nanosecond (ns) to Attosecond (as) using the exact conversion factor (1 nanosecond = 1,000,000,000 attosecond). See the formula, worked examples, and conversion table.
Nanoseconds 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-9 / 1e-18.
Months and years use the average Gregorian year.
Reserved above the conversion cards and below the converter.
About Converting Nanoseconds to Attoseconds
Nanosecond 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: Nanosecond is 1e-9 second units, and attosecond is 1e-18 second units.
Formula
attoseconds = nanoseconds × 1000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 nanosecond equals 1e-9 base units, and 1 attosecond equals 1e-18 base units, so dividing one by the other gives the direct nanosecond-to-attosecond factor of 1000000000.
Simple example
1 ns × 1000000000 = 1,000,000,000 as
1 nanosecond = 1,000,000,000 attoseconds.
Real-world example
24 ns × 1000000000 = 24,000,000,000 as
24 nanoseconds = 24,000,000,000 attoseconds.
Conversion table
| Nanosecond (ns) | Attosecond (as) |
|---|---|
| 1 ns | 1,000,000,000 as |
| 7 ns | 7,000,000,000 as |
| 24 ns | 24,000,000,000 as |
| 30 ns | 30,000,000,000 as |
| 100 ns | 100,000,000,000 as |
| 365 ns | 365,000,000,000 as |
Reverse conversion: Attosecond to Nanosecond
1 as × 1e-9 = 1e-9 ns
1 attosecond = 1e-9 nanoseconds.
nanoseconds = attoseconds × 1e-9
For a page dedicated to this direction, see Attosecond to Nanosecond.
Understanding the Nanosecond (ns)
Nanosecond is 1e-9 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 nanosecond?
1 nanosecond equals 1,000,000,000 attoseconds, using the exact defined conversion factor rather than an estimate.
How do I convert nanosecond to attosecond?
Multiply the nanosecond value by 1000000000. The converter above does this instantly to whatever precision you set.
How do I convert attosecond back to nanosecond?
Use the reverse factor: 1 attosecond equals 1e-9 nanoseconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a nanosecond?
Nanosecond (ns) is a unit of time.
What is a attosecond?
Attosecond (as) is a unit of time.
Is the nanosecond to attosecond conversion exact?
Yes. Both nanosecond and attosecond are defined by fixed standards rather than physical artifacts, so the factor of 1000000000 used above is exact to as many digits as you choose to display.