Convert between ordinary decimal numbers and scientific notation in both directions. Scientific notation, sometimes called standard form, writes a number as a coefficient between one and ten multiplied by a power of ten, which makes very large and very small quantities compact and easy to compare. This tool takes any number you type, whether it is a plain decimal like 0.00042 or an expression like 6.022e23, and shows you the scientific form, the E notation used by calculators and code, and the fully expanded decimal. That makes it handy for chemistry, physics, astronomy and engineering where quantities span dozens of orders of magnitude. Type a value and every representation updates live. All calculation happens in your browser, so nothing is uploaded and it works offline.
Scientific notation writes a number as a coefficient between 1 and 10 multiplied by a power of ten, for example 4.5 times 10 to the 3 is 4500.
E notation replaces times ten to the power with the letter E, so 4.5 times 10 to the 3 is written 4.5E3. This calculator shows both forms.
Yes. Enter a value in scientific or E notation and it converts back to a plain decimal number.
Convert between ordinary decimal numbers and scientific notation in both directions. Scientific notation, sometimes called standard form, writes a number as a coefficient between one and ten multiplied by a power of ten, which makes very large and very small quantities compact and easy to compare.
Yes. Scientific Notation Converter is completely free, with no sign-up and no usage limits.
Yes. Scientific Notation Converter runs in any modern web browser. There is nothing to download or install.
Yes. Scientific Notation Converter runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
Link this tool from a README, doc or site. The badge links back to this page.
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