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Math

Scientific Notation Converter

Write a decimal or E-notation number in scientific notation with a chosen display precision.

Exact method explained belowEditable inputs

Set up your calculation

Runs on your device

SOLUTION

Your result

Let’s calculate.

Use the Calculate button to see your result.

Review the method below for assumptions and conventions.

How to use this tool

  1. Enter number, significant digits to display.
  2. Select Calculate to view the result.
  3. Check the method and assumptions below before using the result.

The method, explained

Represent the value as a coefficient with magnitude at least 1 and below 10, multiplied by an integer power of ten. Round to the chosen significant-digit count. Zero is displayed with exponent zero.

A WORKED EXAMPLE

0.000456 becomes 4.56 × 10^-4 at three significant digits. 999 becomes 1.0 × 10^3 at two significant digits.

What to keep in mind

This formats a numeric value; it does not infer measurement uncertainty or count significant figures in typed trailing zeros. Browser floating-point range and rounding apply.

Common questions

Can I enter E notation?

Yes. For example, 6.02e23 means 6.02 multiplied by 10 to the power 23.

Are the original trailing zeros preserved?

No. Output precision is controlled by your selected significant-digit count.

Methodology maintained by ClarityKit. How these tools are built and checked.