Scientific Notation Calculator
Convert numbers to/from scientific notation and perform arithmetic operations with step-by-step explanations.
Use the Scientific Notation Calculator
Enter a number in standard form or in scientific notation (use e for the exponent, e.g. 3.4e-5).
Enter a number on the left and click Convert or Calculate to see the result here.
Result
Scientific Notation
E-Notation
Standard Decimal
Step-by-Step Working
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Summary
Scientific notation expresses very large or very small numbers as a coefficient (1 ≤ |a| < 10) multiplied by a power of 10. This calculator converts between standard decimal and scientific notation, and handles all four arithmetic operations — showing intermediate steps so you can follow the math.
How it works
- Choose a mode: Convert a number, or perform arithmetic on two scientific-notation values.
- For conversion, enter a number in standard form or in scientific notation and click Convert.
- For arithmetic, enter Coefficient A and Exponent A, then Coefficient B and Exponent B.
- Select the operation (add, subtract, multiply, or divide) and click Calculate.
- The result appears in both scientific notation and standard decimal form, with step-by-step working shown below.
Use cases
- Convert astronomical distances like 149,600,000 km to 1.496 × 10⁸ km.
- Work with very small numbers in chemistry, such as atomic radii or Avogadro's number.
- Multiply or divide values in physics equations without losing precision.
- Check your manual scientific-notation arithmetic against a correct reference.
- Understand the rules of scientific notation for homework or exam revision.
- Present engineering figures in a compact, internationally understood format.
Frequently Asked Questions
Last updated: 2026-06-04 · Reviewed by Nham Vu