Change Number’s Exponent

Change Number’s Exponent lets you modify the exponent part of numbers written in scientific notation. You can replace, shift, or randomize exponents while keeping full control over formatting, rounding, and output style all in real time.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .csv, .log, .json, .xml, .md, .ini, .yaml, .yml, .html, .htm, .css
Total characters: 0
Options
Preserve Scientific Notation
Include original in output
Trim trailing zeros
Maximize output

How to Use:

Enter a list of numbers into the input box scientific notation like 1.23e4 or plain decimals like 3.14 both work. Below the input, you can optionally import a .txt, .csv, or similar text-based file using the Choose File button.

Pick a mode from the Options box:

Mode:

  • Fixed Exponent replaces every number’s exponent with the value you enter
  • Add to Exponent increases each exponent by the value
  • Subtract from Exponent decreases each exponent by the value
  • Random Exponent generates a new exponent from 0 up to the value you specify

You can also toggle:

  • Preserve Scientific Notation keeps mantissa e exponent format
  • Include original in output shows both input and result, like 5.678e2 → 5.678e5
  • Trim trailing zeros cleans up unnecessary decimal places

The Exponent value box lets you define the number used for the selected mode. Once you’re set, the output updates automatically and flashes blue. You can copy the result, export it to a file, or reset everything with the buttons below.

What Change Number’s Exponent can do:

Change Number’s Exponent gives you precision control over how exponents appear in your data. You can enforce a uniform exponent across entries, shift all values higher or lower by a fixed delta, or simulate variety with randomized exponents. The tool supports both scientific notation and standard format, and rounding options ensure your results stay clean.

The Options panel includes four useful modes for exponent manipulation, a trim toggle to tidy up formatting, and a preserve format switch to keep results readable. The input supports multiline values and accepts common text-based file formats. Real-time changes and an output counter make it easy to track updates on the fly.

Example:

Input:

1.23e4
3.5e2
9.99

Mode: Add to Exponent Exponent value: 2 Preserve Scientific Notation: ON Trim trailing zeros: ON Include original in output: ON

Output:

1.23e4 → 1.23e6
3.5e2 → 3.5e4
9.99 → 9.99e2

Common Use Cases:

This tool is handy for reformatting scientific datasets, testing exponential impact on models, or creating synthetic data with consistent or varied exponent ranges. Whether you’re normalizing a set for readability or simulating adjustments for machine learning input, Change Number’s Exponent lets you do it live, safely, and in bulk.

Useful Tools & Suggestions:

If you’re tweaking exponents, you might also want to explore Change Number’s Mantissa to control the other half of scientific notation. Or try Find Entropy of a Number if you’re analyzing number structure and want to dive deeper into how much “information” a number holds.