Scientific Notation Converter

Convert numbers between standard decimal form and scientific (E-notation) form.

Number (decimal or E-notation, e.g. 1.2e-7):

How to use

Enter a number in either form and click Convert. Everything runs in your browser — nothing is uploaded or stored.

What is 0.00045 in scientific notation?

4.5 × 10⁻⁴.

Can I paste numbers like 1.2e-7?

Yes — E-notation input is accepted.

☕

Every tool runs 100% in your browser — no uploads, no signups. If a tool saved you time, consider supporting us with a small donation.