Scientific Notation Converter
Convert numbers both ways: enter a large or tiny number to see it in scientific and e notation, or paste scientific notation to get the full number back.
Number to Scientific Notation
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Scientific Notation to Number
Standard Number: —
How to use
- Type a number in the first box to convert it to scientific and e notation.
- Or paste scientific notation in the second box to convert it back.
- Results update live — edit either side and watch the other follow.
Note
In scientific notation a number is written with a mantissa between 1 and 10 and a power of 10. In engineering notation the exponent is always a multiple of 3.
Frequently Asked Questions (FAQ)
What can I convert?
Any large or small number into scientific notation, e notation, or engineering notation, and back into a normal number.
Does it convert instantly as I type?
Yes. Both directions update live the moment you type, with no button to press.
What is e notation?
A shorthand way to write scientific notation, like 1.23e8, which means 1.23 times 10 to the power of 8.
Can I convert scientific notation back to a normal number?
Yes. Enter the mantissa and exponent in the second section and the full number appears instantly.