Scientific Notation Converter
Convert numbers to and from scientific notation
Calculator
Coefficient
2.99792458
Exponent
8
E-notation
2.99792458e8
Scientific Notation
- Format: a × 10ⁿ where 1 ≤ |a| < 10
- Positive exponent: large numbers (10³ = 1000)
- Negative exponent: small numbers (10⁻³ = 0.001)
- E-notation: 2.998e8 = 2.998 × 10⁸
How to Use
Convert between standard and scientific notation
Enter number
Input a number in standard form or scientific notation
View conversion
See the number in both standard and scientific notation
Copy result
Copy the converted value in your preferred format
Scientific Notation
a x 10^n (where 1 <= a < 10)
A number between 1 and 10 multiplied by 10 raised to an integer power.
Frequently Asked Questions
Scientific notation expresses numbers as a coefficient (1-10) multiplied by 10 raised to a power. For example, 299,792,458 = 2.998 x 10^8. It makes very large or small numbers easier to read, write, and calculate with.
Move the decimal point until you have a number between 1 and 10. Count how many places you moved - that is your exponent. Moving left = positive exponent, moving right = negative. 0.00045 = 4.5 x 10^-4 (moved 4 places right).
E-notation is how calculators and computers write scientific notation. 2.998E8 means 2.998 x 10^8. The number after E is the power of 10. 6.02E23 is Avogadro's number (6.02 x 10^23). Negative exponents: 1.6E-19.
To multiply: multiply coefficients and add exponents. (3 x 10^4) x (2 x 10^3) = 6 x 10^7. To divide: divide coefficients and subtract exponents. (8 x 10^6) / (4 x 10^2) = 2 x 10^4.