Bruce's Annuity Calculator

Bruce's Annuity Calculator values a stream of payments, for a fixed number of years or for life, and finds the payment, rate or length that makes the numbers work. Enter what you know: the payment and how often it comes, the interest rate, when payments start, how they rise and when they stop. Then pick the unknown: the value now, the payment, the rate or the length. The answer updates as you type. Use it to check the rate inside an annuity quote, weigh a pension's monthly payment against its lump sum, put a value on a settlement, or see what a steady income is worth at a given rate. PAYMENTS FOR LIFE When payments stop at death, their value depends on how long you live. Choose Your life or Joint life, answer twelve questions about your age, health and habits, and the app estimates a life expectancy from US mortality tables (Social Security and CDC) adjusted by a model fitted on national health survey data. It then values each year's payment by the chance that it is actually paid, for one life or two, with an optional minimum period and a share that continues to a surviving spouse. A 65 year old's life expectancy is an average, and real lifetimes spread widely around it. The app values the whole spread, year by year, rather than assuming everyone lives to the average. The life expectancy is an educational estimate from population statistics. It is not a prediction of anyone's lifespan and it is not medical advice. The sources are listed in Settings, How this works. THE DETAILS Payments can come daily, weekly, every two weeks, monthly, quarterly, twice a year or yearly. They can rise by a percentage or a dollar amount, start now or after a wait, and run for a fixed length, for one life, for two lives, or forever. The graph under the answer shows each year's payment. Touch it to read any year. Back steps through your last 100 calculations, and they are kept between launches. Reset returns to the opening screen. PRIVACY No account and no sign in. No ads, no subscription, no in-app purchases. Your calculations and your answers are kept on your device, and Settings, Erase memory deletes them. The app sends anonymous usage statistics, which include your answers in a form that cannot be traced to you: no identifiers, and never your date of birth. You can turn them off in Settings. Built by an actuary.