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Scientific Notation Calculator

Convert numbers to and from scientific notation, and perform arithmetic operations in scientific notation.

Convert to/from Scientific Notation
Standard Number
Scientific Notation
× 10^
Arithmetic in Scientific Notation

Enter values as: mantissa × 10^exponent

Value 1 mantissa
× 10^
Operation
Value 2 mantissa
× 10^
Result
Result
8.0 × 10⁷
FormValue
Powers of 10 Reference
PowerValuePrefixSymbol
10¹²1,000,000,000,000TeraT
10⁹1,000,000,000GigaG
10⁶1,000,000MegaM
10³1,000Kilok
10⁻³0.001Millim
10⁻⁶0.000001Microμ
10⁻⁹0.000000001Nanon
10⁻¹²0.000000000001Picop

Scientific Notation

Scientific notation expresses numbers as M × 10^n, where 1 ≤ |M| < 10 (the mantissa) and n is an integer (the exponent). It makes very large or very small numbers easier to work with.

Arithmetic Rules

Multiply: multiply mantissas, add exponents. (3×10⁴) × (2×10³) = 6×10⁷
Divide: divide mantissas, subtract exponents. (6×10⁷) ÷ (2×10³) = 3×10⁴
Add/Subtract: first make exponents equal, then add/subtract mantissas.