Scientific Notation Calculator

Q: What is scientific notation?

Scientific notation expresses numbers as a × 10^n, where 1 ≤ |a| < 10 and n is an integer. For example, 123,000 = 1.23 × 10^5 and 0.0045 = 4.5 × 10^-3.

Q: How do I 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 is the exponent. Moving left gives a positive exponent, moving right gives a negative exponent.

Number to Scientific Notation

Number

Scientific Notation to Number

Coefficient (a)

Exponent (n)

Formula

Scientific Notation: a × 10^n where 1 ≤ |a| < 10

Frequently Asked Questions

What is scientific notation?

Scientific notation expresses numbers as a × 10^n, where 1 ≤ |a| < 10 and n is an integer. For example, 123,000 = 1.23 × 10^5 and 0.0045 = 4.5 × 10^-3.

How do I 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 is the exponent. Moving left gives a positive exponent, moving right gives a negative exponent.

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