GuideStead.

Practical calculators for real decisions.

Simple estimates for pay, work, and everyday money decisions.

Paycheck calculator

Estimate what you may take home after federal, Social Security, Medicare, and a state income tax rate you enter yourself.

Job offer comparison

Compare two jobs after estimated taxes, commute time, and work-related costs.

Raise calculator

See whether a raise increased your buying power after inflation.

Car purchase calculator

Compare the total cost of paying cash, financing, or leasing the same vehicle.

College offer comparison

Compare the total financial cost of two college acceptance offers, including aid and debt.

First home affordability

Estimate your total monthly housing cost for a home purchase and see how it compares to your income.

Employer retirement match

See if you're capturing your full 401(k) match, plus your overall savings rate this year.

Commute cost

See what your commute actually costs you a year, and compare it to public transit.

How it works

Use each calculator on its own or move between GuideStead calculators for a connected comparison.

1. Enter your numbers

Start with the pay, work, and household details that apply to your situation.

2. Reuse saved inputs

Each calculator states which inputs are saved automatically in this browser. Matching saved inputs are filled into other GuideStead calculators when the same information is used.

3. Review the estimate

Use each calculator result as a practical starting point, then review the assumptions listed for that calculator before making an important decision.

FAQ

Where are my inputs saved?

Gross pay, pay frequency, filing status, state tax rate, 401(k) percentage, annual health premium, job-comparison entries, raise-comparison entries, car-purchase entries, college-offer entries, first-home entries, employer-match entries, and commute-cost entries are saved automatically in this browser on this device. Use Start fresh in a calculator, or clear your browser data, to remove the saved inputs.

Are calculator inputs sent anywhere?

No. The calculations run in your browser, and the financial numbers you enter are not uploaded by the calculators.

Do I need an account?

No. There is no login, password, or online finance profile.

Why does my actual paycheck look different?

Your payroll system may include W-4 details, local taxes, employer-specific deductions, benefit rules, credits, rounding, and other items not included in the paycheck estimate.

What tax year does the paycheck calculator use?

The paycheck calculator uses tax-year 2026 assumptions.

What inflation data does the raise calculator use?

The raise calculator uses Consumer Price Index for All Urban Consumers (CPI-U) annual averages through the latest completed year available in the calculator.

Why don't I pick my state from a list?

Instead of a state dropdown, the paycheck and job-offer calculators ask for your effective state income tax rate directly, as a percentage. Enter the rate you know applies to you, or leave the field blank to leave state tax out of the estimate entirely. This keeps the calculators accurate for every state, including ones with unusual rules (mandatory local taxes, phase-out deductions, multi-bracket credits) that a simplified model could easily get wrong.

Does the car purchase calculator include safety ratings or reliability data?

Not directly. The National Highway Traffic Safety Administration (part of the U.S. Dept. of Transportation) tracks crash-test safety ratings and recalls, but not reliability — that's private-sector data (Consumer Reports, J.D. Power, and similar), not something a government agency tracks. Rather than building in a dataset covering thousands of makes, models, and years — which would go stale fast — the car purchase calculator links directly to NHTSA's own ratings and recall lookup tools, which are free, official, and always current.

Does the college offer comparison factor in career outcomes or earning potential?

No, deliberately. It compares financial cost only — sticker price, grants and scholarships, loans, and the resulting monthly payment after graduation. Program quality, career outcomes, expected earnings by major or school, and personal fit all matter, but they aren't part of what this tool measures.

Is the 28%/36% guideline on the first home affordability calculator a real lending rule?

Not exactly — it's a widely used guideline, not a law or a single lender's cutoff. Many loans (like FHA) approve higher ratios, especially with good credit or savings. Treat it as a helpful gut check, not a pass/fail test. More detail.

Why doesn't the employer match calculator show what my savings will be worth at retirement?

A multi-decade projection depends heavily on an assumed rate of return, which nobody actually knows in advance — showing one number could look like a prediction rather than an estimate. This calculator sticks to a this-year snapshot: are you capturing your full match, and what's your savings rate right now.

What is "commute time value" on the commute cost calculator?

It's optional context, not real money spent. It applies your own gross hourly pay to the hours you spend commuting, so you can see the time trade-off next to the dollar cost. Job Offer Comparison uses the same idea. Turn it off if you'd rather see dollar costs only.

Is this financial advice?

No. GuideStead calculators are for estimates and planning only.

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