Power Calculators

⏱️ Seconds to Attoseconds Converter

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1 second =
1 × 10¹⁸ attoseconds
1 attosecond =
1 × 10⁻¹⁸ seconds
Formula
as = s × 1 × 10¹⁸
Handy values
5 s = 5 × 10¹⁸ as · 10 s = 1 × 10¹⁹ as · 100 s = 1 × 10²⁰ as

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⚡ Seconds to Attoseconds: the quick answer

1 s = 1 × 10¹⁸ as 1 second equals 1 × 10¹⁸ attoseconds

To convert seconds to attoseconds, multiply the value by 1 × 10¹⁸. To go the other way, multiply attoseconds by 1 × 10⁻¹⁸ to get seconds.

↔ Convert attoseconds to seconds instead

🧮 Formula

Seconds to Attoseconds
as = s × 1 × 10¹⁸
Attoseconds to Seconds
s = as × 1 × 10⁻¹⁸

Where

  • s = the time in seconds
  • as = the time in attoseconds
Every unit here is defined by its time in seconds, so the conversion factor is (seconds per second) ÷ (seconds per attosecond).

📊 Seconds to Attoseconds conversion table

Seconds (s)Attoseconds (as)
1 s1 × 10¹⁸ as
2 s2 × 10¹⁸ as
3 s3 × 10¹⁸ as
4 s4 × 10¹⁸ as
5 s5 × 10¹⁸ as
6 s6 × 10¹⁸ as
7 s7 × 10¹⁸ as
8 s8 × 10¹⁸ as
9 s9 × 10¹⁸ as
10 s1 × 10¹⁹ as
12 s1.2 × 10¹⁹ as
14 s1.4 × 10¹⁹ as
15 s1.5 × 10¹⁹ as
20 s2 × 10¹⁹ as
21 s2.1 × 10¹⁹ as
24 s2.4 × 10¹⁹ as
25 s2.5 × 10¹⁹ as
30 s3 × 10¹⁹ as
40 s4 × 10¹⁹ as
50 s5 × 10¹⁹ as
60 s6 × 10¹⁹ as
75 s7.5 × 10¹⁹ as
80 s8 × 10¹⁹ as
100 s1 × 10²⁰ as
200 s2 × 10²⁰ as
250 s2.5 × 10²⁰ as
300 s3 × 10²⁰ as
400 s4 × 10²⁰ as
500 s5 × 10²⁰ as
750 s7.5 × 10²⁰ as
1,000 s1 × 10²¹ as

✏️ Worked examples

Convert 25 seconds to attoseconds

25 s × 1 × 10¹⁸ = 2.5 × 10¹⁹ as

Try this example →

Convert 250 seconds to attoseconds

250 s × 1 × 10¹⁸ = 2.5 × 10²⁰ as

Try this example →

📘 About these units

Second (s). The second is the SI base unit of time, defined by the caesium-133 atom.

Attosecond (as). An attosecond is 10⁻¹⁸ of a second, the scale of electron motion in atoms.

❓ Frequently asked questions

How many attoseconds are in one second?

There are 1 × 10¹⁸ attoseconds in one second.

How do I convert seconds to attoseconds?

Multiply the number of seconds by 1 × 10¹⁸. For example, 10 seconds equal 1 × 10¹⁹ attoseconds.

How many seconds are in one attosecond?

One attosecond equals 1 × 10⁻¹⁸ seconds.

How many attoseconds is 12 seconds?

1.2 × 10¹⁹ attoseconds. Other common values: 5 seconds = 5 × 10¹⁸ attoseconds and 100 seconds = 1 × 10²⁰ attoseconds.

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