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Every calculator you actually reach for, in one place.
TidyTally is a free hub of everyday financial calculators — mortgage payments, loan payoff timelines, retirement projections, tip splitting, and compound interest. Every calculation runs locally on your device: nothing you type is ever sent to a server, stored, or tracked.
Mortgage Calculator
Monthly payment, full amortization schedule, and total interest over the life of your loan.
💳Loan Payoff Calculator
See your payoff date and how much extra payments actually save you in interest.
📈Retirement Savings Calculator
Project your retirement balance and compare a few different contribution levels.
🧾Tip Splitter
Split the bill, pick a tip percentage, and divide it evenly in seconds.
💰Compound Interest Calculator
See how contributions and compounding frequency grow your savings over time.
What's Your Money Personality?
Answer 3 quick questions and we'll point you to the calculator that fits how you actually think about money.