Finance Calculators
67 free finance calculators on Calcinum, covering mortgages, loans, retirement planning, taxes, investing, and personal budgeting. All numbers reflect 2026 IRS limits, SSA wage base, and current market rates.
Mortgage & home loans (9)
Plan a home purchase, compare refinance scenarios, and project payoff. Every calc uses current 2026 mortgage rates and conforming limits.
- › Mortgage Calculator
Estimate monthly PITI, total interest, and amortization for any home loan.
- › Mortgage Payoff Calculator
See how extra monthly payments shave years and thousands off your mortgage.
- › Mortgage Recast Calculator
Lower monthly payment after a lump sum, without refinancing.
- › Reverse Mortgage Calculator
HECM equity-cash estimate for homeowners age 62+.
- › Interest Only Calculator
Monthly interest-only payment for HELOCs, jumbo, or bridge loans.
- › Commercial Mortgage Calculator
CRE loan with balloon payment, DSCR check, and full amortization.
- › PMI Calculator
Private mortgage insurance cost when down payment is under 20%.
- › Mobile Home Loan Calculator
Chattel and FHA Title I loans for manufactured housing.
- › Home Sale Calculator
Net cash after commission, closing costs, and mortgage payoff.
Personal loans & debt (11)
From auto loans to credit-card debt strategies. Includes the avalanche and snowball methods with month-by-month projections.
- › Loan Calculator
Monthly payment and total interest for any fixed-rate loan.
- › Auto Loan Calculator
Car payment plus lease-vs-buy analysis with 2026 average APRs.
- › Car Refinance Calculator
See how much auto refinancing saves at today's lower rates.
- › Student Loan Calculator
Compare Standard, IBR, PAYE, and the new RAP plan (launching July 2026).
- › Credit Card Payoff Calculator
Pay-off date and total interest with optional extra payments.
- › Debt Snowball Calculator
Pay smallest balances first, roll payment into next. Multi-debt schedule.
- › EMI Calculator
Equated Monthly Installment for India-context home, car, and personal loans.
- › Line of Credit Calculator
HELOC, PLOC, and BLOC payment math with draw and repayment phases.
- › SBA Loan Calculator
SBA 7(a), 504, and Microloan payments with 2026 guaranty fees.
- › DTI Calculator
Debt-to-income ratio and maximum mortgage affordability.
- › Interest Calculator
Simple and compound interest on savings or loans with custom frequency.
Investing & retirement (17)
Project retirement savings, model FIRE timelines, and estimate dividend or bond returns. All retirement caps reflect 2026 IRS limits.
- › 401(k) Calculator
Project retirement balance with employer match, vesting, and inflation.
- › Roth IRA Calculator
Tax-free growth projection with 2026 contribution limits.
- › Roth vs Traditional 401(k)
Side-by-side comparison based on current vs retirement tax rate.
- › RMD Calculator
Required Minimum Distribution under SECURE Act 2.0 rules.
- › FERS Retirement Calculator
Federal Employees Retirement System pension annuity calculator.
- › FIRE Calculator
Financial Independence number, time to FIRE, and Coast FIRE check.
- › Coast FIRE Calculator
When you can stop saving and still hit your target.
- › Social Security Calculator
Estimate benefits at age 62, FRA, and 70 with 2026 PIA bend points.
- › Future Value Calculator
Compound growth of any initial deposit plus monthly contributions.
- › Stock Calculator
Total return, capital gain, and after-tax profit on any stock trade.
- › Dividend Calculator
Dividend income, yield, and DRIP growth over time.
- › CD Calculator
Certificate of deposit earnings with APY, term, and tax.
- › APY Calculator
Convert APR to effective annual yield by compounding frequency.
- › Savings Bond Calculator
Series I and EE bond growth with current Treasury rates.
- › 529 Calculator
Tax-free college savings growth with 2026 contribution gifting limits.
- › Crypto Calculator
Profit/loss, DCA, and capital gains tax for cryptocurrency holdings.
- › Gold Calculator
Scrap gold and silver melt value by karat and weight.
Personal finance & budget (6)
Track your money, build emergency reserves, and benchmark net worth against your age cohort.
- › Budget Calculator
50/30/20 rule and custom budget allocations across categories.
- › Net Worth Calculator
Assets minus liabilities, with US age-group benchmarks.
- › Emergency Fund Calculator
How much to save and how long it takes to get there.
- › Cost of Living Calculator
Compare cost of living between 50 US cities.
- › Income Percentile by Age
See where your income ranks for your age in the US.
- › Salary Increase Calculator
Convert raise percent to dollar amount, with compound projection.
Insurance & risk (3)
Life insurance need analysis with the DIME method, plus health-account tax savings.
- › Term Life Insurance
Annual premium estimate plus coverage-need analysis (DIME).
- › Whole Life Insurance
Premium, cash value growth, and BTID comparison.
- › HSA / FSA Calculator
Tax savings from Health Savings or Flexible Spending account contributions.
Tax calculators (13)
All 2026 federal brackets, FICA, state taxes, and credits. Includes OBBB Act changes for 2026.
- › Federal Tax Calculator
Estimate federal income tax with credits and deductions for any income.
- › Tax Bracket Calculator
Find your marginal and effective rate in the 2026 bracket structure.
- › W-4 Calculator
Calculate exactly what to enter on each step of IRS Form W-4.
- › Capital Gains Tax
Short-term vs long-term capital gains tax on investment profits.
- › Estate / Gift Tax
Federal estate tax with $15M exemption and state inheritance overlay.
- › Lottery Tax Calculator
Lump sum vs annuity take-home after federal and state taxes.
- › Self-Employment Tax
Social Security and Medicare taxes for 1099 income.
- › Settlement Tax Calculator
Estimate taxes on legal settlements by category (physical injury, wages, punitive).
- › Sales Tax Calculator
Combined state + local sales tax for any US location.
- › Reverse Sales Tax
Find pre-tax price from receipt total and rate.
- › Property Tax Calculator
Annual property taxes from assessed value and local mill rates.
- › DoorDash Tax Calculator
1099 gig worker tax estimate with mileage deduction.
- › No-Tax-on-Overtime Calc
Savings from the OBBB 2026 overtime deduction.
Salary & paycheck (8)
Convert between annual, monthly, and hourly pay. Includes state-specific paycheck calculators for all 50 states.
- › Salary Calculator
Annual gross-to-net salary with state taxes and FICA, all 50 states.
- › Take-Home Pay
Per-paycheck net pay (weekly / biweekly / monthly) after deductions.
- › Salary to Hourly
Convert any annual salary to hourly wage with custom hours/week.
- › Hourly to Salary
What your hourly rate equals as annual, monthly, or weekly pay.
- › Income Calculator
Aggregate W-2, 1099, and investment income into total annual income.
- › Military Pay
Base pay, BAH, BAS, and total compensation by rank for 2026.
- › Overtime Calculator
Regular + OT pay under FLSA rules with weekly/biweekly view.
- › Time and a Half
1.5x pay rate math from any hourly wage, plus double-time.