Holding period return and annualized return of an investment from its buy value, sell value, income and days held.. Annualized Return Calculator is a free online tool from the ToolsRift Finance & Health Calculators collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
Enter your buy value, sell value, any income received and the number of days held. The calculator shows the holding period and annualized return.
It is the total percentage gain over the time you held an investment: (sell value + income − buy value) / buy value × 100, regardless of how long you held it.
The holding period return is scaled to a yearly rate using (1 + HPR)^(365/days) − 1, so investments held for different durations can be compared fairly.
A 10% gain in 6 months is far better than 10% over 3 years. Annualizing puts every investment on the same yearly basis so comparisons are meaningful.