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Finance Calculators

Finance calculators for pay and money. Estimate your take-home pay after 2026 federal income tax, Social Security and Medicare, convert a salary or hourly wage into yearly, monthly, weekly and hourly pay, work out profit margin and markup, solve for any margin figure, calculate return on investment, add sales tax to a price, apply discounts, project a Roth IRA, find a loan payment, price a mortgage, build an amortization schedule and grow savings with compound interest or a CD. Every tool runs in your browser, shows its assumptions and needs no sign-up. Results are estimates, not financial or tax advice.

Last updated November 3, 2026

Featured tools

All Finance & Money calculators

Paycheck & Benefits

Take-home pay, salary and hourly wages

Loans & Mortgages

Payments, amortization and loan costs

Investing & Savings

Interest, returns and retirement accounts

Margins & ROI

Margin, markup and ROI

Everyday Spending

Sales tax, discounts and budgets

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Frequently asked questions

How do I estimate my take-home pay?

Use the Take-Home Pay Calculator: enter your pay and filing status and it returns your estimated pay after federal income tax, Social Security and Medicare.

How do I convert an hourly wage to a yearly salary?

Use the Salary Calculator. At 40 hours a week for 52 weeks, a $25 hourly wage is $52,000 a year.

What is the difference between margin and markup?

Margin is profit as a share of the selling price, markup is profit as a share of the cost. Use the Profit Margin Calculator to see both.

Are these results financial or tax advice?

No. They are estimates based on stated assumptions. Check your own situation with your employer, a tax professional or the IRS.

Do these calculators store my numbers?

No. Every calculation runs in your browser and nothing you enter is saved or uploaded.