Explore how savings could grow, or let a wheel pick from your list. Open a tool below to get started. No sign-up is needed.
Compound Interest Calculator
Estimate a balance over time using a starting amount, interest rate and duration. Compare daily, weekly, monthly or yearly compounding, with optional regular deposits.
Try it: compare saving a fixed amount each month with leaving your starting balance alone. Check the rate convention before calculating.
Estimates exclude fees, tax, inflation and changing returns. Currency selection formats amounts; it does not convert them.
Enter names, activities or other options and spin for a random pick. Paste a list from a spreadsheet, customise the wheel, and save named wheels in this browser.
Try it: add the activities your group is happy with, then spin to choose one. Each row has an equal chance.
Designed for casual decisions. It is not a certified prize draw. Saved wheels stay on this device and browser.
Each tool explains its inputs, assumptions and limits. Calculator results are estimates, not guaranteed investment returns or personal financial advice.
Use a basic version without scripts
Both tools offer native forms when JavaScript is off. Submitting those forms sends your entries to Cloudflare for a temporary result. With JavaScript, calculations and draws run in your browser.
Built and maintained by IT1ST
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