Finance
Free calculators for financial planning including loan interest, savings interest, and take-home pay calculators.
Finance calculators depend on dates, rules, and personal conditions
The finance category helps estimate taxes, interest, loans, wages, costs, and other money-related scenarios. It is useful for comparing assumptions quickly, but the final number can change when official rules, dates, rates, deductions, or personal conditions differ.
Use these tools to frame the likely range, then check the detail rows and source notes before making a filing, contract, payment, or investment decision. For high-stakes cases, confirm the result with an official source or a qualified professional.
18 tools
Common uses
- Estimate taxes, fees, interest, wages, or project costs.
- Compare loan, saving, or investment assumptions.
- Check the effect of dates, periods, and deductions.
- Prepare clearer numbers before an official calculation.
Quick checks
Is a finance calculator legally binding?
No. It is a reference estimate. Official filing, payment, and contract decisions should rely on current rules and professional review when needed.
Are rates and rules always current?
Check the source and base date shown on the tool page, especially for taxes, benefits, and regulated fees.
What should I enter first?
Start with the main amount, date, and period, then adjust deductions, exceptions, or optional conditions.
Tools
18 tools401k Calculator
Project your US 401k balance, employer match, IRS 2026 limits, and a 4% withdrawal guide...
APR Calculator
Enter loan amount, nominal rate, term, upfront fees, and recurring monthly charges to estimate the...
Break-Even Point Calculator
Estimate break-even revenue, required unit sales, margin of safety, and monthly operating profit from fixed...
Cash Flow IRR/NPV Calculator
Enter an upfront investment and yearly net cash flows to estimate IRR, NPV, investment payback...
Compound Interest Calculator (Investment)
Estimate future investment value from an initial amount, monthly contributions, annual return, term, tax settings,...
DTI Calculator
Calculate your Debt-to-Income ratio with QM 43% and Non-QM 50% thresholds. Stress testing, reverse calculation,...
FHA Loan Calculator
Estimate monthly housing cost and cash to close for an FHA 1-unit home purchase with...
Loan Refinance Calculator
Compare your current loan with refinancing options. See monthly savings, interest reduction, net savings after...
Loan Repayment Calculator
Loan Repayment Calculator. Compare Fixed Payment, Equal Principal, and Interest-Only methods. Features grace period, early...
Mortgage Calculator
Calculate monthly payments, total interest, and amortization schedules for home loans. Supports Fixed-Rate, Principal Equal,...
Mutual Fund Calculator
Model a mutual fund plan with ending balance, cost drag, required monthly contribution, and goal...
Overdraft Interest Calculator
Estimate overdraft interest by daily balance in USD, including a 30-day equivalent cost for overdraft...
Personal Loan Interest Calculator
Compare credit loan interest rates by FICO score across credit unions, banks, and online lenders....
Personal Loan Net Proceeds Comparison Calculator
Compare personal loan offers by required funded amount, monthly payment, upfront fees, total interest, and...
Roth IRA Calculator
Calculates 2026 Roth IRA contribution room from IRS limits, MAGI phase-out rules, and other IRA...
Savings Calculator
Enter current savings, monthly contributions, expected return, and a target amount to project your balance...
Traditional Ratio Unit Calculator
Learn Wari-Bu-Rin and Hal-Pun-Ri with quick reference cards, unit tables, bidirectional conversion, and simple interest...
VAT / Sales Tax Calculator
Calculate net price, VAT/tax, and gross price instantly. Supports UK VAT rates (20%, 5%, 0%)...