Scientific Calculator
Trigonometry, logarithms, powers and constants with full expression entry.
Scientific Notation Calculator
Convert to and from scientific, E and engineering notation.
Plain decimals and E notation are both accepted — type 6.02e23 or 602000000000000000000000.
Every form
| Notation | Value |
|---|
SI prefixes
| Prefix | Symbol | Power |
|---|---|---|
| tera | T | 10¹² |
| giga | G | 10⁹ |
| mega | M | 10⁶ |
| kilo | k | 10³ |
| milli | m | 10⁻³ |
| micro | µ | 10⁻⁶ |
| nano | n | 10⁻⁹ |
| pico | p | 10⁻¹² |
Scientific notation
—
Details
Coefficient—
Exponent—
Order of magnitude—
Significant figures—
—
Engineering notation — exponent a multiple of 3
Scientific notation keeps very large and very small numbers readable and makes their precision explicit. Multiplying adds the exponents and dividing subtracts them; adding requires converting to a common exponent first, which the calculator shows rather than skipping.
Quick Tool Overview
The Scientific Notation Calculator converts between plain decimals, scientific notation, engineering notation and E notation, and performs arithmetic on two values written in scientific form with each step of the working shown.
- What it does
- Converts to and from scientific notation and computes with it
- You give it
- A decimal, or a coefficient and exponent
- You get back
- Every notation form, plus arithmetic results
- Best for
- Science coursework and reading very large or small numbers
About the Scientific Notation Calculator
Convert any number into scientific notation and back, and carry out arithmetic on two numbers written that way. Engineering notation, where the exponent is always a multiple of three, and plain E notation are both supported alongside the standard form.
Scientific notation exists so that very large and very small numbers stay readable and their precision stays explicit. Writing 0.000000000667 as 6.67 × 10⁻¹⁰ makes the three significant figures obvious, whereas the decimal form buries them behind zeros that carry no information. The arithmetic rules are simple once seen: multiplying adds the exponents, dividing subtracts them, and adding requires converting to a common exponent first — which is the step the calculator shows rather than skips.
Key features of the Scientific Notation Calculator
Four notations at once
Scientific, engineering, E notation and plain decimal, so you can move between whichever forms you need.
Arithmetic with working
Multiply, divide, add and subtract, with the common-exponent conversion that addition requires shown explicitly.
Engineering notation
Exponents forced to multiples of three so they line up with SI prefixes like kilo, mega and milli.
Significant figures preserved
The coefficient keeps the precision you entered rather than being silently padded or trimmed.
Handles very small numbers
Negative exponents are treated exactly like positive ones, including in the arithmetic modes.
How to use the Scientific Notation Calculator
-
1
Enter a number
A plain decimal, or a coefficient and exponent in scientific notation.
-
2
Read every form
Scientific, engineering, E notation and the plain decimal, all at once.
-
3
Add a second number
Switch to the arithmetic mode to combine two values in scientific notation.
-
4
Follow the working
Each step is shown, including the common-exponent conversion that addition requires.
Frequently asked questions
A number written as a coefficient between 1 and 10 multiplied by a power of ten. 4,500 becomes 4.5 × 10³, and 0.00032 becomes 3.2 × 10⁻⁴.
Multiply the coefficients and add the exponents, then normalise so the coefficient is between 1 and 10. Division subtracts the exponents instead.
Convert both numbers to the same exponent first, then add the coefficients and keep that exponent. This is the step most often skipped and most often got wrong.
A variant where the exponent is always a multiple of three, so it lines up with SI prefixes such as kilo, mega and milli. 45,000 is 45 × 10³ rather than 4.5 × 10⁴.
Reviews of the Scientific Notation Calculator
What people who use the Scientific Notation Calculator think of it. Reviews come from visitors and are posted as written.
No ratings yet
Yours would be the first.
- 5 0 reviews rated 5 stars
- 4 0 reviews rated 4 stars
- 3 0 reviews rated 3 stars
- 2 0 reviews rated 2 stars
- 1 0 reviews rated 1 star
0 reviews
Newest first
No reviews yet
Be the first to rate the Scientific Notation Calculator. It takes half a minute and no account.
Write the first reviewMore calculators
Body Type Calculator
Body shape from bust, waist and hip measurements.
Temperature Calculator
Convert Celsius, Fahrenheit and Kelvin with the formulas shown.
Student Loan Calculator
Payment, payoff time and the cost of interest capitalisation.
CD Calculator
Certificate of deposit maturity value, APY and early withdrawal.
Carbohydrate Calculator
Daily carbs in grams, and what a low or high carb day looks like.
Grade Calculator
Your current grade, and what you need on the final.
Break-Even Calculator
Find the units and revenue needed to cover your fixed costs.