Scientific Notation Calculator
Convert numbers to/from scientific notation, and perform arithmetic in scientific notation. Handles very large and very small numbers perfectly. Free.
Scientific Notation Calculator
toolznova.com • Free Calculator
How to Use
Work with scientific notation in 3 steps.
Choose Mode
Select convert to/from scientific notation or multiply/divide.
Enter Values
Enter the number or scientific notation components.
Get Result
Click Calculate for the converted or calculated result.
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Mobile, tablet, desktop.
Why Use Scientific Notation?
- Science: Express very large or small numbers compactly (speed of light, atom size).
- Astronomy: Distances in space span billions of kilometers.
- Chemistry: Avogadro's number (6.022×10²³ molecules).
- Physics: Planck's constant (6.626×10⁻³⁴ Js).
- Engineering: Very small tolerances in nanotechnology.
- Computing: Floating-point numbers use scientific notation internally.
Tips & Examples
- Speed of light: 3×10⁸ m/s. Avogadro: 6.022×10²³.
- Coefficient must be between 1 and 10 in standard scientific notation.
- Positive exponent: large number. Negative exponent: small number.
- Multiplying: multiply coefficients, add exponents.
- Dividing: divide coefficients, subtract exponents.
- 0.0000456 = 4.56×10⁻⁵ in scientific notation.
Free Scientific Notation Calculator Online
ToolzNova's free scientific notation calculator converts between standard numbers and scientific notation, and performs multiplication and division in scientific notation — essential for science, engineering, and math.
Scientific notation (a × 10ⁿ) is the standard way to express very large or very small numbers concisely. The coefficient a is always between 1 and 10, and n is the integer exponent of 10.
Scientific Notation Rules
To convert: find the exponent n such that a = x × 10ⁿ where 1 ≤ |a| < 10. Multiply: (a×10ⁿ)(b×10ᵐ) = (ab)×10^(n+m). Divide: (a×10ⁿ)/(b×10ᵐ) = (a/b)×10^(n-m).