Compound interest

A=P(1+r)tA=P(1+r)^t

What it does

Calculates compound interest from the supplied values.

When to use it

Use this finance formula when the named quantities are known.

Variables

Worked example
{
  "inputs": {
    "rate": 0.1,
    "time": 2,
    "principal": 1000
  },
  "result": 1210
}
Common mistakes
Check units, signs, brackets and that every value is entered in the stated units.