Know your numbers.
In your browser.

Know your numbers.
In your browser.

Free personal-finance calculators that run 100% locally. No sign-up, no uploads, no tracking of what you calculate.

Pay Raise Calculator Enter your current salary and the raise you were offered (or want to negotiate) to see your new salary, the real dollar increase, and what it adds up to per week, per month and even per hour worked. Social Security Tax Calculator 2026 Estimate the FICA payroll tax withheld from your 2026 wages — Social Security, Medicare, and the additional Medicare tax — using the official 2026 figures. Minimum Payment Calculator Enter your card balance and APR to find out how long a minimum-payment-only strategy takes to clear the debt — and what it really costs you in interest. Biweekly Paycheck Calculator Convert an annual salary into a real take-home paycheck — with 2026 federal brackets, FICA payroll tax, optional state tax and pre-tax deductions. Overtime Pay Calculator Find your true overtime rate and paycheck: enter your hourly wage and hours worked — supports any multiplier (1.5× FLSA standard, 2× double-time, or your union contract). Tax Bracket Calculator 2026 Enter your 2026 income to see exactly which brackets your dollars fill, what you owe, and the difference between your marginal and effective tax rates. Credit Card Payoff Calculator You decided to pay a fixed amount every month — find out when the card is finally paid off and what the interest ride costs, compared with paying half as much. Roth IRA Contribution Calculator 2026 Find your real 2026 Roth IRA allowance: base limit, age catch-up, and the precise phase-out reduction if your modified AGI lands in the range. 401(k) Growth Calculator 2026 See what your contribution percentage and employer match compound into by retirement — and get a warning if you exceed the 2026 IRS deferral limit. Capital Gains Tax on Home Sale Calculator Most homeowners owe nothing when selling — find out if you fall under the §121 exclusion, and if not, exactly what the capital gains and investment surtax cost you. Self-Employment Tax Calculator 2026 Enter your net business income to see the SECA (self-employment) tax you owe on top of income tax — plus the quarterly vouchers the IRS expects. Gas Cost Calculator for Road Trips Know the real fuel bill before you drive: enter trip distance, your car's MPG and today's gas price — add tolls and riders to split the cost fairly. Rent Increase Calculator Landlord sent a renewal with a percentage bump? Enter your current rent and the increase to see the monthly dollars, the annual cost — and whether it beats inflation. Down Payment Percentage Calculator Enter a home price to see every down-payment tier in dollars — including the 20% threshold where mortgage insurance disappears — plus what you must save monthly to get there. Retirement Savings Gap Calculator Find out whether you're on track: enter current savings, contribution rate and target lifestyle — get the inflation-adjusted nest egg you need and the monthly top-up if you're short. Sick Leave Accrual Calculator See exactly how much sick time you'll have accrued by any date — including when your plan's carryover cap stops the meter. Severance Pay Calculator Enter salary, offered weeks and monthly expenses to find the after-tax severance amount and how many months of runway it actually buys. Medicare IRMAA Calculator 2026 The 2026 IRMAA surcharge kicks in above $109,000 MAGI single / $218,000 joint. Find your tier, your exact monthly penalty — and how close you are to the next one. Closing Cost Calculator Enter your target home price and down payment to see the closing cost range and the total cash you need at settlement — separate from the down payment itself. Final Grade Calculator Enter your current course percentage, the final exam's weight and the grade you want — get the exact score you must hit, and whether it's even possible. GPA Calculator – Weighted College Grade your term the way your registrar does: letter grade × credit hours, summed over credits. Includes a straight-A ceiling for the next term. Semester Grade Calculator Enter each graded component's weight and score to build your semester grade the way your syllabus does — with a live contribution breakdown. Age in Days Calculator Pick your birth date to see exactly how many days you've been alive — leap years handled — and the countdown to the next milestone worth marking. Car Loan Payment Calculator Enter price, cash down, trade-in, tax rate, APR and term to get your payment — and the total interest the bank earns on the deal.

Why DimeCalc?

Most calculator sites route your salary and debt through their servers, then monetize what they learn. Ours is a static site: the math happens in your browser tab. Turn off your internet after the page loads — the calculators keep working.

Every tool uses verified 2026 figures (IRS/SSA published rates) and shows its update date. When in doubt, we'd rather tell you the formula than hide it.