Standard Form Calculator
🔢 Number, percentages & ratio. Use the Standard form formula to find number, a, power of ten n: pick the value you want, type the others, and the answer updates as you go.
a is between 1 and 10; n is a whole number.
Number45000
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Number | no unit |
| a | no unit |
| Power of ten n | no unit |
Worked example
Find the number when a = 4.5, Power of ten n = 4.
Using N = a × 10ⁿ: Number = 45000.
Frequently asked questions
What is the formula for Standard form?
N = a × 10ⁿ. a is between 1 and 10; n is a whole number.
What do the letters stand for, and what units are used?
Number, a, Power of ten n.
How do you calculate number?
Put the values into N = a × 10ⁿ. For example, with a = 4.5, Power of ten n = 4, number = 45000.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (number, a, power of ten n) and fill in the others: it rearranges the formula for you.
