Convert numbers between decimal, scientific notation and engineering notation, with the E notation form and the order of magnitude shown.. Scientific Notation Converter is a free online tool from the ToolsRift Study & Education Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
Loading Scientific Notation Converter…
How to use Scientific Notation Converter
Enter a number in any form — 0.00045, 4.5e-4 or 4.5 x 10^-4 — and the decimal, scientific, engineering and E-notation versions all appear together with the order of magnitude.
Frequently asked questions
What is scientific notation?
A number written as a coefficient between 1 and 10 multiplied by a power of ten, such as 6.022 × 10²³. It keeps very large and very small numbers readable and makes the number of significant figures explicit.
How is engineering notation different?
Engineering notation restricts the exponent to multiples of three, so the coefficient runs from 1 to 999. That lines the exponent up with the SI prefixes, which is why 47,000 ohms is written 47 × 10³ Ω and read as 47 kilohms.
What is E notation?
It is the plain-text form calculators and programming languages use, where 6.022e23 means 6.022 × 10²³. The tool shows it alongside the typeset version so you can paste values straight into a spreadsheet or code.
ToolsRift processes your files in your browser. We use cookies only for basic analytics and to support ads that keep every tool free. See our Cookie Policy.