Calculator directory
A focused library of financial estimate tools.
Choose a calculator below. Each tool is built to show the estimate clearly, explain the method, and offer a simplified embed version for professional websites.
These tools are best used for quick planning estimates. For tax, legal, financial, or investment decisions, use the result as a starting point and speak with a qualified professional.
Browse by category
Compound Interest
Estimate how savings or investments can grow over time with monthly contributions and compounding.
Best for
Savings goals, Investment scenarios, Contribution planning
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Loan Payment
Estimate a monthly payment, total paid, and total interest for a fixed-rate installment loan.
Best for
Personal loans, Auto loan estimates, Monthly payment planning
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Credit Card Payoff
Estimate how long it may take to pay off a credit card balance and how much interest could be paid.
Best for
Payoff planning, Interest cost estimates, Payment comparisons
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Debt Snowball vs Avalanche
Compare debt snowball and debt avalanche payoff strategies using balances, APRs, minimum payments, and extra monthly payment.
Best for
Debt payoff planning, Snowball vs avalanche, Interest savings estimates
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Mortgage Payment
Estimate a monthly mortgage payment including principal, interest, taxes, insurance, and HOA.
Best for
Home purchase planning, Monthly housing estimates, Tax and insurance scenarios
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Deduction Savings
Estimate how much a deduction may reduce taxes based on an estimated federal and state tax rate.
Best for
Deduction planning, Tax savings estimates, Client conversations
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Business Profit Reserve
Estimate business profit, a tax reserve, and remaining cash after entered owner payments.
Best for
Small business planning, Tax reserve estimates, Owner cash flow
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Self-Employment Set-Aside
Estimate a simple tax reserve for self-employment or 1099 income based on expected profit and a planning percentage.
Best for
1099 income, Freelance planning, Tax reserve estimates
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Quarterly Tax Estimate
Estimate a simple quarterly tax payment target based on expected annual tax, withholding, prior payments, and remaining payment periods.
Best for
Estimated payments, Tax planning checkups, Contractor cash flow
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Paycheck Take-Home
Estimate take-home pay from gross pay using simple withholding, payroll tax, and deduction assumptions.
Best for
Paycheck planning, Withholding estimates, Take-home pay checks
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Refund vs Paycheck
Estimate whether withholding may create a refund or amount owed and how much to adjust per remaining paycheck.
Best for
Withholding planning, Refund estimates, Paycheck planning
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Roth vs Traditional
Compare simplified Roth and Traditional retirement contribution outcomes using tax rate and return assumptions.
Best for
Retirement planning, Tax rate assumptions, Roth comparisons
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Emergency Fund
Estimate an emergency fund target, remaining gap, and time to goal based on essential monthly expenses.
Best for
Emergency savings, Savings goals, Household planning
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Refinance Break-Even
Estimate how long it may take monthly savings from a refinance to recover closing costs.
Best for
Refinance planning, Break-even estimates, Mortgage comparisons
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Rent vs Buy
Compare a simplified rent cost against a simplified ownership cost over a chosen number of years.
Best for
Housing planning, Rent comparisons, Ownership scenarios
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Savings Goal
Estimate the remaining amount and time needed to reach a savings goal.
Best for
Savings goals, Monthly contribution planning, Goal timelines
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Business Break-Even
Estimate break-even units and revenue based on fixed costs, price per unit, and variable cost per unit.
Best for
Business planning, Pricing checks, Unit economics
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Sales Tax
Estimate sales tax and final total from an item price, tax rate, and optional discount.
Best for
Purchase estimates, Sales tax checks, Discount scenarios
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Invoice Profit
Estimate profit from an invoice after direct expenses, platform fees, and a simple tax reserve.
Best for
Freelancers, Invoice planning, Profit estimates
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