Math Tools

Estimate the impact of a pay raise on annual and monthly income.

Measure expense ratio by comparing total expenses with total income.

Build a quick monthly budget by comparing income with expenses and savings targets.

Estimate the monthly savings needed to hit a future goal using current savings, rate, and time.

Estimate cash-on-cash return for rental or investment property from annual cash flow and cash invested.

Measure debt service coverage ratio for rental property or business cash flow planning.

Estimate home equity from current property value and the balance still owed on the mortgage.

Estimate monthly lease cost for a car using price, residual value, money factor, and lease term.

Measure a regular pentagon from one side length for geometry and design layouts.

Measure a regular octagon from one side length for geometry and layout planning.