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Scientific notation expresses a number as a coefficient (1 ≤ |a| < 10) multiplied by a power of 10. Used for very large or very small numbers in science. E.g., 0.0000045 = 4.5 × 10⁻⁶.
Review the inputs carefully and treat the output as an estimate. For decisions involving money, taxes, health, law, or security, compare the result with trusted professional guidance when needed.
How do I convert to scientific notation?
Move the decimal point until only one non-zero digit is to the left. Count moves: right = negative exponent, left = positive exponent. E.g., 45000 = 4.5 × 10⁴.
Rounding Calculator
Round any number to a specified number of decimal places, significant figures, or a custom increment.
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Calculate base raised to any power, including fractional exponents.
Open toolBig Number Calculator
Perform arithmetic (add, subtract, multiply) on very large integers beyond standard calculator range.
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