Scientific notation moves the decimal point until one nonzero digit remains before it. The number of places moved becomes the power of ten. Large numbers use positive exponents, and small decimals use negative exponents.
⚠Note: Zero is a special case and is usually written simply as 0 rather than a normalized scientific notation value.
How Scientific Notation Works
Move the decimal point to create a coefficient between 1 and 10, then count the movement as the exponent.
Coefficient
The leading number must be at least 1 and less than 10.
Exponent
The exponent counts decimal-place movement.
Large Values
Moving left creates a positive exponent.
Small Values
Moving right creates a negative exponent.
💡 Example: 4,500,000 = 4.5 × 10^6 because the decimal moved 6 places left.
Applications of Scientific Notation
ScienceEngineeringMeasurementsAstronomy
Frequently Asked Questions
What is a scientific notation calculator?▼
It converts numbers into a × 10^n form and helps interpret powers of ten.
What is the formula for scientific notation?▼
Scientific notation writes a number as a × 10^n, where 1 ≤ |a| < 10.
How do I use this calculator?▼
Enter a decimal number and click Convert to get scientific notation.
Can scientific notation represent small numbers?▼
Yes. Small decimals use negative powers of ten.
Where is scientific notation used?▼
It is common in science, engineering, measurements, astronomy, and very large or small quantities.
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