toololis
Terug Terug to Finance
💰

Lening Rekenmachine — Gratis online tool

Maandlasten, totale rente en aflossingsschema

Bereken maandelijkse aflossing, totale rente en aflossingsschema. Gratis lening- en hypotheekrekenmachine, direct in je browser.

$
%
years
Monthly payment
$—
principal + interest only
Total paid
$—
Total interest
$—
Interest %
—%
📊 Amortization schedule (first & last year)
Month Payment Principal Interest Balance
📚
Meer weten

Free loan & mortgage calculator — payment, interest, amortization

Toololis Loan Rekenmachine computes fixed-rate loan payments using the standard amortization formula. Works for mortgages, auto loans, student loans, and personal loans. See your monthly payment, total paid over the life of the loan, total interest, and a year-by-year breakdown.

What you get

  • Monthly P&I payment — The headline number
  • Total paid over loan term — Principal + all interest
  • Total interest — How much the loan really costs
  • Interest as % of principal — Useful comparison metric
  • Amortization schedule — First year + last year, showing how payments shift from mostly-interest to mostly-principal

How to use this tool

  1. 1

    Enter loan amount

    Type the total amount you're borrowing (the principal). Works for mortgages, auto loans, personal loans, student loans.

  2. 2

    Set the interest rate

    Annual interest rate as a percentage (e.g., 5.5). This calculator uses fixed-rate amortization — the math for standard loans.

  3. 3

    Choose loan term

    Length of the loan in years. Common: 30 or 15 for mortgage, 5 for auto, 10 for student.

  4. 4

    Read your monthly payment

    The headline number is your monthly payment. Below you'll see total paid over the full term and total interest — often more than the loan itself for long-term loans.

Typical loan types and terms

  • 30-year fixed mortgage — Most common in the US. Lower payment, higher total interest.
  • 15-year fixed mortgage — Higher payment, ~50% less total interest.
  • 5 or 7-year adjustable (ARM) — Fixed rate for initial period, then adjusts. Neet modeled here (use fixed rate).
  • Auto loan — 3–7 years typical. Shorter = less interest, higher payment.
  • Student loan — 10 years standard (US federal). Can extend to 20–25 years.
  • Personal loan — 2–7 years. Higher interest than secured loans.

How to save on interest

  • Shorter term — A 15-year mortgage vs 30-year saves ~50% of total interest
  • Lower rate — Every 1% reduction on a 30-year mortgage saves ~10–15% of total cost
  • Extra payments — Any amount above minimum goes 100% to principal, accelerating payoff
  • Bi-weekly payments — Paying half your monthly payment every 2 weeks = 13 monthly payments/year = 4–6 years off a 30-year mortgage
  • Refinance when rates drop — 1% lower rate on a large loan often pays back closing costs within 2 years

Frequently Asked Questions

How is the monthly payment calculated?
Using the standard amortization formula: P × (r × (1+r)ⁿ) / ((1+r)ⁿ − 1) where P = principal, r = monthly interest rate (annual ÷ 12), n = total months. Each payment includes principal and interest; the split changes over time.
Why do I pay so much more interest than principal in early years?
On a typical 30-year mortgage at 6%, about 80% of your first monthly payment is interest. Over time that flips. The formula charges interest on the remaining balance, which shrinks slowly at first, fast at the end. Use the amortization table to see the shift.
How much does a higher rate cost?
On a $300,000 30-year mortgage: at 5% monthly = $1,610, total interest = $280k. At 7% monthly = $1,996, total interest = $418k. That's $138,000 more interest for a 2% rate difference.
Should I choose a 15-year or 30-year mortgage?
15-year: higher monthly payment, much lower total interest, faster equity buildup. 30-year: lower monthly payment (more cash-flow flexibility), higher total cost. Rule: if you can comfortably afford the 15-year payment, it saves hundreds of thousands in interest.
Can I prepay to save on interest?
Yes — and it's powerful. An extra $200/month on a $300k 30-year mortgage can save $90,000+ in interest and cut 6 years off the term. Check your loan for prepayment penalties (rare in US mortgages, common on personal loans).
Does this include taxes and insurance?
Nee. This calculator shows the principal + interest payment (P&I). For a full mortgage payment (PITI), add property taxes (usually 1–2% of home value yearly ÷ 12) and home insurance. For loans other than mortgages, P&I is usually the entire payment.
Is this saved anywhere?
Nee. All calculations happen in your browser. Your loan numbers stay on your device.

Belangrijkste punten

  • Loan Rekenmachine is a free, browser-based finance tool — monthly payments, total interest & amortization.
  • Nee signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Loan Rekenmachine

  1. Open the tool: Launch Loan Rekenmachine on Toololis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Loan Rekenmachine — Quick Facts

Prijs
Gratis — geen limieten, geen watermerk, geen paywall
Privacy
100% in de browser — geen data verlaat je apparaat
Platform
Elke moderne browser — desktop, tablet of mobiel
Categorie
Finance Tools on Toololis
Offline
Works offline after first visit (Progressive Web App)
FunctieDetails
ToolLoan Rekenmachine
CategorieFinance
Aanmelden vereistNee
Bestand uploadenGeen — verwerkt in browser
Mobiel ondersteundVolledig responsive
KostenVoor altijd gratis

Why Use Loan Rekenmachine?

You should try Loan Rekenmachine for a quick, private way to monthly payments, total interest & amortization. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

You might also like

🔒
100% Privacy. Deze tool draait volledig in je browser. Je gegevens worden nooit naar een server geüpload.