Finance Tools
Six free calculators for the money decisions most people actually run into: borrowing, paying down a mortgage, converting hourly to annual salary, seeing how compound interest builds wealth, stress-testing a retirement plan, and doing fast percentage math. Every calculation runs inside your browser, so numbers you type never leave your device.
Who these tools are for
UtilityGet's finance tools are built for the kind of quick, practical math that sits between a napkin and a full-blown spreadsheet. If you want to know what a car loan will actually cost, whether a mortgage offer beats your current one, how much of your paycheck is take-home pay, or whether your retirement savings are on track, you can get a trustworthy answer in under a minute.
There are no accounts, no uploads, and no stored profiles. That matters for finance in particular: salary numbers, debt balances, and retirement projections are sensitive, and they should stay on your device. Every tool below uses the same formulas lenders and banks use - the difference is that we show the math and let you compare scenarios side by side.
At a glance
- 6 calculators in this hub: Loan, Mortgage, Salary, Compound Interest, Retirement, and Percentage.
- Same formulas as the banks. The math matches what lenders and advisors use.
- Private by default. Salary, debt, and retirement numbers never leave your browser.
- No accounts. Nothing to sign up for, nothing to uninstall.
- Side-by-side scenarios. Change one input to see exactly how the result shifts.
Best tools in this category
Pick the tool that matches the decision in front of you. Each one is linked to a focused page with inputs, results, and explanatory content.
How to choose the right tool
These six calculators look similar from the outside, but they answer very different questions. Use this quick decision guide to get to the right one fast.
- You have a specific loan offer in hand. Use the Loan Calculator. Enter principal, rate, and term to see the monthly payment and how interest and principal shift across the amortization schedule.
- You are buying, refinancing, or comparing mortgages. Use the Mortgage Calculator. It includes property tax and insurance so your monthly estimate reflects real housing costs, not just principal and interest.
- You want to convert a pay rate. Use the Salary Calculator to go from an hourly rate to annual pay, or to see what a monthly salary works out to per week. Useful when comparing job offers or negotiating contract rates.
- You are saving or investing for the long term. Use the Compound Interest Calculator to model monthly contributions, expected return, and time horizon. Raise the contribution to see how much faster you hit a goal.
- You want a realistic retirement projection. Use the Retirement Calculator. It projects your fund at retirement, applies the 4% withdrawal rule, and flags whether the balance lasts through your target age.
- You need to do percentage math. Use the Percentage Calculator for tips, discounts, tax, markups, grade scores, percentage change, and reverse percentages.
Common use cases
A few concrete situations these tools are designed to handle.
- Shopping for a car loan. Drop in the quoted principal and rate to check whether the monthly payment in the dealer's offer matches the numbers in the Loan Calculator. A mismatch usually means extra fees are hidden inside the financing.
- Comparing a 15-year vs. 30-year mortgage. Run the Mortgage Calculator twice with the same principal and different terms. The 30-year is cheaper per month but often doubles total interest paid.
- Negotiating a salary. Convert the employer's annual figure to hourly with the Salary Calculator. Compare it to your current rate and to freelance day-rates in your market.
- Planning a savings milestone. Put your target amount, current balance, and expected return into the Compound Interest Calculator and adjust the monthly contribution until the projection hits your goal on time.
- Sanity-checking a retirement plan. Use the Retirement Calculator with conservative and optimistic return rates. If the conservative scenario still meets your target, the plan has headroom.
- Everyday percentage math. The Percentage Calculator handles a 20% tip, a 15% off coupon, a 7.5% sales tax, or a year-over-year revenue change in the same interface.
Related tools outside finance
Some adjacent tools on UtilityGet pair well with financial planning.