Financial Calculators

Simple, accurate tools for everyday financial decisions.

Merton's Return & Spending

Calculate risk-adjusted return, optimal allocation (Merton Share), and optimal spending rates using CRRA utility.

Calculate monthly repayments, total interest, and view a full amortisation schedule.

Find the present value of a future cash flow given a discount rate and time period.

Price a stream of regular payments — finite annuity or perpetuity.

Value a series of payments that grow at a constant rate each period.

Project the future value of regular contributions with compound interest.

Price a fixed-coupon bond given yield to maturity, face value, and maturity.