Scientific Notation Calculator

Convert a decimal to scientific notation and back.

Scientific Notation Calculator helps you convert a decimal to scientific notation and back. Enter decimal / coefficient and exponent (power of 10), review the breakdown, and use the guidance below to understand what the number means — and what it does not. What the Scientific Notation calculator does Scientific Notation Calculator is built for arithmetic, algebra, geometry, and number tools. Convert a decimal to scientific notation and back. You enter decimal / coefficient and exponent (power of 10), then Simple Calculators computes the result instantly. Results use standard school and engineering formulas that run privately in your browser. How the math works Choose a Mode. For Decimal → scientific, enter a Decimal number and the calculator moves the decimal point until one non-zero digit is in front of it; the number of places moved becomes the exponent. For Scientific → decimal, enter the Coefficient and a whole-number Exponent (power of 10), and it works out coefficient × 10^exponent. Both modes also show engineering notation (powers in steps of 3) and calculator E-notation, such as 1.23E4. The formula: Number = coefficient × 10^exponent. The coefficient is at least 1 and less …