Puffinmint
EN
Italiano English Español Français Deutsch Português (Brasil) 日本語 한국어 Polski Türkçe

Scientific notation converter

Convert decimal numbers and exponential notation in either direction while preserving the digits you enter.

Processed in your browser: your data are not uploaded.

Set your data

Set your data

At most 1,000 digits; normalized exponent from −10,000 to 10,000. Zeros are normalized; significant figures are not inferred.

Result

Enter your values to see the result.

We count which tools are used most, without including entered values or file contents in the statistics. Privacy

How to use it

Move the decimal point until exactly one nonzero digit precedes it. Count the moves: moving left gives a positive exponent, moving right gives a negative exponent. The number’s sign and the exponent’s sign are independent.

Example inputs
InputResult
0.00001231.23 × 10⁻⁵

Method and limits

The numeric value is converted exactly; trailing zeros are normalized. This does not establish a measurement’s significant figures.

Example

Usage scenario

Input
0.0000123
Result
1.23 × 10 −5= 0.0000123

Calculation steps

  1. Normalize the coefficient between 1 and 10

    0.0000123 × 10 5 = 1.23

  2. Reconstruct the original number

    1.23 × 10 −5= 0.0000123

For 0.0000123, move the point five places right to obtain 1.23 with exponent −5. For 123000, move it five places left to obtain 1.23 with exponent 5. Reconstruct the original number as a final check.

What are the limits of this tool?

At most 1,000 digits; normalized exponent from −10,000 to 10,000. Zeros are normalized; significant figures are not inferred.

Inputs and results are processed in your browser and are not sent to the server. Aggregate statistics, when enabled, record only the tool and outcome, without the content.

Sources

PRACTICAL GUIDES

How to write scientific notation, step by step

Move the decimal point, choose the exponent sign and reconstruct the original number. Examples cover large, small and negative values.

Follow the steps

You might also need

View all

Scientific calculator

Calculate powers, roots, logarithms and trigonometric functions.

Percent error calculator

Compare a measured value with a reference. Calculate signed difference, absolute error, relative error and percentage error.

Long division calculator with steps and remainders

Solve long division with remainders and decimal places. Follow every subtraction, check the quotient and copy the working, including decimal inputs.

Favorites