Scientific Notation Converter
Convert between standard numbers and scientific notation. Switch modes to go either direction.
This tool is for informational and educational purposes only. It is not a substitute for professional financial, medical, legal, or engineering advice. See Terms of Service.
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Request a ToolHow to Use the Scientific Notation Converter
Choose a direction and enter your value. "To Scientific" converts a standard number to scientific notation. "From Scientific" converts a coefficient and exponent back to standard form.
- Choose a mode. Click "To Scientific" or "From Scientific" at the top.
- Enter your value(s). For "To Scientific," enter any number. For "From Scientific," enter the coefficient and the exponent (power of 10).
- Read the result. The converted value appears instantly. Copy or Share to save it.
Scientific notation expresses numbers as a coefficient (between 1 and 10) multiplied by a power of 10. For example, 123,456 becomes 1.23456 x 10^5.
About Scientific Notation
Scientific notation is a way to write very large or very small numbers compactly. Instead of writing 0.000000045, you write 4.5 x 10^-8. Scientists, engineers, and mathematicians use it daily because it makes calculations easier, comparisons clearer, and avoids long strings of zeros.
The format is always: a coefficient between 1 (inclusive) and 10 (exclusive), times 10 raised to an integer power. Positive exponents indicate large numbers; negative exponents indicate small numbers. Zero is a special case with coefficient 0 and exponent 0.
Frequently Asked Questions
How do you convert a number to scientific notation?
Move the decimal point until you have a number between 1 and 10. Count how many places you moved it. That count becomes the exponent. If you moved left, the exponent is positive. If right, negative. For example, 5,400 = 5.4 x 10^3 (moved 3 places left).
What is 0.00032 in scientific notation?
0.00032 = 3.2 x 10^-4. Move the decimal point 4 places to the right to get 3.2, so the exponent is -4.
How do you multiply numbers in scientific notation?
Multiply the coefficients and add the exponents. For example, (2 x 10^3) x (3 x 10^4) = 6 x 10^7. If the resulting coefficient is 10 or greater, adjust by moving the decimal and increasing the exponent.