Convert any number to scientific notation or back. Also perform arithmetic operations (multiply, divide, add, subtract) on numbers in scientific notation.
Fill in the details and
your result appears here.
Convert: turn any number into scientific notation. Calculate: multiply/divide/add/subtract numbers already in scientific notation.
Any size works — from 0.000001 to 999999999999999. Paste from anywhere.
Standard notation (×10^), E-notation (used in computers), and the full number.
To convert: move the decimal point until the number is between 1 and 10. The number of places moved is the exponent (positive for large numbers, negative for small).
A way to express very large or very small numbers as a coefficient (1–10) multiplied by a power of 10. The speed of light: 299,792,458 m/s = 2.998×10^8. Planck's constant: 6.626×10^-34 J·s.
Move the decimal right until you get a number between 1 and 10: 4.5. You moved it 5 places right, so the exponent is −5. Answer: 4.5×10^-5.
Computer shorthand for scientific notation. 3×10^8 is written as 3e8. 2.5×10^-12 is 2.5e-12. Common in calculators, spreadsheets, and programming languages.
Multiply the coefficients and add the exponents. (3×10^4) × (2×10^3) = 6×10^7. Then adjust if the coefficient is ≥ 10 or < 1.
Multiply the coefficient by 10 raised to the exponent. For 3.2 × 10⁴: move the decimal 4 places right to get 32,000. For 5.6 × 10⁻³: move left 3 places to get 0.0056.