# atomic unit of time to second conversion

Conversion number between atomic unit of time [au] and second [s] is 2.418884326509 × 10-17. This means, that atomic unit of time is smaller unit than second.

### Contents [show][hide]

Switch to reverse conversion:
from second to atomic unit of time conversion

### Enter the number in atomic unit of time:

Decimal Fraction Exponential Expression
 [au]
eg.: 10.12345 or 1.123e5

Result in second

?
 precision 0 1 2 3 4 5 6 7 8 9 [info] Decimal: Exponential:

### Calculation process of conversion value

• 1 atomic unit of time = (2.418884326509*10^-17) / (1) = 2.418884326509 × 10-17 second
• 1 second = (1) / (2.418884326509*10^-17) = 4.1341373336493 × 10+16 atomic unit of time
• ? atomic unit of time × (2.418884326509*10^-17  ("s"/"atomic unit of time")) / (1  ("s"/"second")) = ? second

### High precision conversion

If conversion between atomic unit of time to second and second to second is exactly definied, high precision conversion from atomic unit of time to second is enabled.

Since definition contain rounded number(s) too, there is no sense for high precision calculation, but if you want, you can enable it. Keep in mind, that converted number will be inaccurate due this rounding error!

### atomic unit of time to second conversion chart

 Start value: [atomic unit of time] Step size [atomic unit of time] How many lines? (max 100)

visual:
atomic unit of timesecond
00
102.418884326509 × 10-16
204.837768653018 × 10-16
307.256652979527 × 10-16
409.675537306036 × 10-16
501.2094421632545 × 10-15
601.4513305959054 × 10-15
701.6932190285563 × 10-15
801.9351074612072 × 10-15
902.1769958938581 × 10-15
1002.418884326509 × 10-15
1102.6607727591599 × 10-15
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## Multiple conversion

Enter numbers in atomic unit of time and click convert button.
One number per line.

Converted numbers in second:
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## Details about atomic unit of time and second units:

Convert Atomic unit of time to other unit:

### atomic unit of time

Definition of atomic unit of time unit: ≡ a0/(α·c). This is the smallest meaningful time unit under which an electron takes a circle on the first Bohr pitch divided by 2π.

Convert Second to other unit:

### second

Definition of second unit: ≡ 1 s. SI base unit. The second is the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom at 0 K temperature.

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