Power and Root Calculator
𝑥 Algebra. Use the Power and root formula to find y, x, power n: pick the value you want, type the others, and the answer updates as you go.
y81
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 |
|---|---|
| y | no unit |
| x | no unit |
| Power n | no unit |
Worked example
Find the y when x = 3, Power n = 4.
Using y = xⁿ ⇔ x = n√(y): y = 81.
Frequently asked questions
What is the formula for Power and root?
y = xⁿ ⇔ x = n√(y).
What do the letters stand for, and what units are used?
y, x, Power n.
How do you calculate y?
Put the values into y = xⁿ ⇔ x = n√(y). For example, with x = 3, Power n = 4, y = 81.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (y, x, power n) and fill in the others: it rearranges the formula for you.
