Free Calculators — Page 8

Quantify what folding unpaid interest into principal really costs — the lifetime penalty and the extra monthly payment it creates at repayment start.

Add $75 a month to a $31,500 loan and watch years fall off — the interest saved, the new payoff date, and where every dollar goes.

Side-by-side all-in cost of Grad PLUS — rate plus origination deduction — against a private alternative for the same grad-school dollar.

Divide a degree's total cost by the salary premium it buys — the payback in years, plus decade and career earnings multiples.

A paused loan still burns interest daily — see the monthly burn, the pile-up over your pause, and what paying along would have cost.

Forgiven debt can arrive with a tax bill — estimate the hit from your marginal rates and what you'd actually keep of $68,000 forgiven.

List your loans, get the exact attack order by interest rate — payoff months per loan, interest saved and the debt-free date.

A $4,300 bill on a hospital plan versus a 24.99% card — see the total-cost gap before choosing how to handle medical debt.

Borrowing $17,000 of a $26,000 wedding costs thousands in interest — see the payment, the all-in price, and the cost per guest.

Going now on a 19.9% loan versus saving twelve months: the interest paid, the yield forgone, and the true premium for impatience.

A $799 sofa through rent-to-own can top $1,370 — total paid, premium percent, and the annualized markup before you sign.

Six rollovers on a $500 payday loan means $450 of fees while principal never moves — cycle-by-cycle fees and the annualized truth.

Pay $89 a month, get $1,000 back after a year — see the true net cost of a credit-builder loan and what to verify before signing.

Lend $12,000 to family at 2% instead of a floor-style rate and about $180 of interest shifts around — structure it cleanly from day one.

Four overlapping BNPL plans at $65 each quietly commit $260 a month — map the stack, your income share, and one bad week's fee cascade.

Need $2,400 for thirty days? Savings cost $8 in lost yield, a card $59, payday $540 — see every rung priced for your exact gap.

Will a lender approve your consolidation? Current DTI versus pro-forma DTI under the offer — $1,450 scattered becomes one $388 payment.

On a $30,000 loan, see how much a 35% balloon cuts the monthly payment — and the $1,400-plus it adds to the total you repay.

Trading a car worth $13,000 that owes $18,500? See exactly what rolling the $5,500 gap does to your next payment and total interest.

Qualified for 5.49% but the contract says 7.99%? On a $28,000, 60-month loan that spread hands the dealer about $2,150.

That $2,400 extended warranty breaks even only if covered repairs average about $458 a year — model your car's repair reality either way.

A $42,500 EV with $9,500 of combined credits and 6.5% tax lands near $36,563 drive-away — here is the honest arithmetic behind that number.

A $34,000 car falling to $17,000 over five years costs about 64¢ a mile once fuel, maintenance and insurance ride along.

Pay off a 60-month rule-of-78s loan after 18 payments and the front-loading penalty runs about $50–$300 versus simple interest.

Residual $19,500, market $22,000? Buying out captures about $1,500 of equity after tax and fees — or walking away wins when it flips.

A $14,200 trade offer versus a $16,800 private sale nets only ~$1,300 apart once tax savings and selling costs have their say.

Financing $22,000 at 17.5% instead of 6.5% for 72 months adds about $9,000 in interest — 38% of the car's price, paid invisibly.

On a $378,000 loan with rising values, PMI can end years early — see the month it stops, the route to claim it, and $2,220/year freed.

Dropping $40,000 onto a 5.25% mortgage: a ~$275 recast cuts the payment to about $1,856 — refinancing at 6.125% costs more monthly AND upfront.

A 5/1 ARM at 5.25% with 2/5 caps can legally climb to a payment near $3,300 — stress-test the ceiling before the teaser rate seduces you.

A $35,000 HELOC at 8.75% costs $255/month interest-only now — then jumps to ~$448 when the draw period ends and amortization begins.

$200 extra a month plus $1,000 a year on a $310,000 mortgage saves six figures of interest and retires the loan years early.

Two points ($7,600 on a $380,000 loan) buy the rate down to 6.25% and break even at month 61 — stay longer and they pay.

A reassessment pushing taxes to $6,800 can spring a $1,150 shortage — see the new $822 escrow payment and what the first year really costs.

Pulling $50,000 by refinancing a 4.5% mortgage to 6.5% costs ~$251k in incremental interest — the HELOC route needs about $40k.

On $360,000 the 15-year saves ~$268,000 of interest for $749 more a month — but investing that difference at 7% closes much of the gap.