# Calculator for Engineering Economics

# Result:

### {{outputType}}: ${{ output.toFixed(2) }}

**i** = Interest rate per interest period.

**N** = Number of interest periods.

**P** = Present sum of money.

**F** = Future sum of money.

**A** = Amount per compounding period.

**G** = Uniform increase or decrease in cash flow.

**f** = Geometric gradient.