Wealth Sandbox

Loan Calculator

Payment & amortization

Use this calculator for any fixed-rate loan: mortgages, auto loans, personal loans, or bonds. Choose amortized (equal payments of principal and interest), deferred (interest-only for a period, then amortized), or bond-style (coupons plus face at maturity). Enter the loan amount, rate, term, and payment frequency to see your payment, total interest, and full schedule with a principal-versus-interest breakdown.

Display currency
🇨🇦 CAD

Inputs

%
years
months
Monthly
Monthly (APR)

Results

Payment per period
CA$1,061
Total payments
CA$127,279
Total interest
CA$27,279

Total principal vs interest

CA$127,279
  • PrincipalCA$100,000 (79%)
  • InterestCA$27,279 (21%)

Principal and interest over time

Amount of principal and interest paid each year over the life of the loan.

Loading chart…
Payment #1PaymentCA$1,061PrincipalCA$644InterestCA$417BalanceCA$99,356
Payment #2PaymentCA$1,061PrincipalCA$647InterestCA$414BalanceCA$98,709
Payment #3PaymentCA$1,061PrincipalCA$649InterestCA$411BalanceCA$98,060
Payment #4PaymentCA$1,061PrincipalCA$652InterestCA$409BalanceCA$97,408
Payment #5PaymentCA$1,061PrincipalCA$655InterestCA$406BalanceCA$96,753
Payment #6PaymentCA$1,061PrincipalCA$658InterestCA$403BalanceCA$96,096
Payment #7PaymentCA$1,061PrincipalCA$660InterestCA$400BalanceCA$95,435
Payment #8PaymentCA$1,061PrincipalCA$663InterestCA$398BalanceCA$94,772
Payment #9PaymentCA$1,061PrincipalCA$666InterestCA$395BalanceCA$94,107
Payment #10PaymentCA$1,061PrincipalCA$669InterestCA$392BalanceCA$93,438
Payment #11PaymentCA$1,061PrincipalCA$671InterestCA$389BalanceCA$92,767
Payment #12PaymentCA$1,061PrincipalCA$674InterestCA$387BalanceCA$92,093
Payment #13PaymentCA$1,061PrincipalCA$677InterestCA$384BalanceCA$91,416
Payment #14PaymentCA$1,061PrincipalCA$680InterestCA$381BalanceCA$90,736
Payment #15PaymentCA$1,061PrincipalCA$683InterestCA$378BalanceCA$90,053
Payment #16PaymentCA$1,061PrincipalCA$685InterestCA$375BalanceCA$89,368
Payment #17PaymentCA$1,061PrincipalCA$688InterestCA$372BalanceCA$88,680
Payment #18PaymentCA$1,061PrincipalCA$691InterestCA$370BalanceCA$87,988
Payment #19PaymentCA$1,061PrincipalCA$694InterestCA$367BalanceCA$87,294
Payment #20PaymentCA$1,061PrincipalCA$697InterestCA$364BalanceCA$86,597
Payment #21PaymentCA$1,061PrincipalCA$700InterestCA$361BalanceCA$85,898
Payment #22PaymentCA$1,061PrincipalCA$703InterestCA$358BalanceCA$85,195
Payment #23PaymentCA$1,061PrincipalCA$706InterestCA$355BalanceCA$84,489
Payment #24PaymentCA$1,061PrincipalCA$709InterestCA$352BalanceCA$83,781
Payment #25PaymentCA$1,061PrincipalCA$712InterestCA$349BalanceCA$83,069
Payment #26PaymentCA$1,061PrincipalCA$715InterestCA$346BalanceCA$82,354
Payment #27PaymentCA$1,061PrincipalCA$718InterestCA$343BalanceCA$81,637
Payment #28PaymentCA$1,061PrincipalCA$721InterestCA$340BalanceCA$80,916
Payment #29PaymentCA$1,061PrincipalCA$724InterestCA$337BalanceCA$80,193
Payment #30PaymentCA$1,061PrincipalCA$727InterestCA$334BalanceCA$79,466
Payment #31PaymentCA$1,061PrincipalCA$730InterestCA$331BalanceCA$78,737
Payment #32PaymentCA$1,061PrincipalCA$733InterestCA$328BalanceCA$78,004
Payment #33PaymentCA$1,061PrincipalCA$736InterestCA$325BalanceCA$77,269
Payment #34PaymentCA$1,061PrincipalCA$739InterestCA$322BalanceCA$76,530
Payment #35PaymentCA$1,061PrincipalCA$742InterestCA$319BalanceCA$75,788
Payment #36PaymentCA$1,061PrincipalCA$745InterestCA$316BalanceCA$75,043
Payment #37PaymentCA$1,061PrincipalCA$748InterestCA$313BalanceCA$74,295
Payment #38PaymentCA$1,061PrincipalCA$751InterestCA$310BalanceCA$73,544
Payment #39PaymentCA$1,061PrincipalCA$754InterestCA$306BalanceCA$72,790
Payment #40PaymentCA$1,061PrincipalCA$757InterestCA$303BalanceCA$72,033
Payment #41PaymentCA$1,061PrincipalCA$761InterestCA$300BalanceCA$71,272
Payment #42PaymentCA$1,061PrincipalCA$764InterestCA$297BalanceCA$70,508
Payment #43PaymentCA$1,061PrincipalCA$767InterestCA$294BalanceCA$69,742
Payment #44PaymentCA$1,061PrincipalCA$770InterestCA$291BalanceCA$68,972
Payment #45PaymentCA$1,061PrincipalCA$773InterestCA$287BalanceCA$68,198
Payment #46PaymentCA$1,061PrincipalCA$777InterestCA$284BalanceCA$67,422
Payment #47PaymentCA$1,061PrincipalCA$780InterestCA$281BalanceCA$66,642
Payment #48PaymentCA$1,061PrincipalCA$783InterestCA$278BalanceCA$65,859
Payment #49PaymentCA$1,061PrincipalCA$786InterestCA$274BalanceCA$65,073
Payment #50PaymentCA$1,061PrincipalCA$790InterestCA$271BalanceCA$64,283
Payment #51PaymentCA$1,061PrincipalCA$793InterestCA$268BalanceCA$63,490
Payment #52PaymentCA$1,061PrincipalCA$796InterestCA$265BalanceCA$62,694
Payment #53PaymentCA$1,061PrincipalCA$799InterestCA$261BalanceCA$61,895
Payment #54PaymentCA$1,061PrincipalCA$803InterestCA$258BalanceCA$61,092
Payment #55PaymentCA$1,061PrincipalCA$806InterestCA$255BalanceCA$60,286
Payment #56PaymentCA$1,061PrincipalCA$809InterestCA$251BalanceCA$59,477
Payment #57PaymentCA$1,061PrincipalCA$813InterestCA$248BalanceCA$58,664
Payment #58PaymentCA$1,061PrincipalCA$816InterestCA$244BalanceCA$57,848
Payment #59PaymentCA$1,061PrincipalCA$820InterestCA$241BalanceCA$57,028
Payment #60PaymentCA$1,061PrincipalCA$823InterestCA$238BalanceCA$56,205
Payment #61PaymentCA$1,061PrincipalCA$826InterestCA$234BalanceCA$55,378
Payment #62PaymentCA$1,061PrincipalCA$830InterestCA$231BalanceCA$54,548
Payment #63PaymentCA$1,061PrincipalCA$833InterestCA$227BalanceCA$53,715
Payment #64PaymentCA$1,061PrincipalCA$837InterestCA$224BalanceCA$52,878
Payment #65PaymentCA$1,061PrincipalCA$840InterestCA$220BalanceCA$52,038
Payment #66PaymentCA$1,061PrincipalCA$844InterestCA$217BalanceCA$51,194
Payment #67PaymentCA$1,061PrincipalCA$847InterestCA$213BalanceCA$50,347
Payment #68PaymentCA$1,061PrincipalCA$851InterestCA$210BalanceCA$49,496
Payment #69PaymentCA$1,061PrincipalCA$854InterestCA$206BalanceCA$48,641
Payment #70PaymentCA$1,061PrincipalCA$858InterestCA$203BalanceCA$47,783
Payment #71PaymentCA$1,061PrincipalCA$862InterestCA$199BalanceCA$46,922
Payment #72PaymentCA$1,061PrincipalCA$865InterestCA$196BalanceCA$46,057
Payment #73PaymentCA$1,061PrincipalCA$869InterestCA$192BalanceCA$45,188
Payment #74PaymentCA$1,061PrincipalCA$872InterestCA$188BalanceCA$44,316
Payment #75PaymentCA$1,061PrincipalCA$876InterestCA$185BalanceCA$43,440
Payment #76PaymentCA$1,061PrincipalCA$880InterestCA$181BalanceCA$42,560
Payment #77PaymentCA$1,061PrincipalCA$883InterestCA$177BalanceCA$41,677
Payment #78PaymentCA$1,061PrincipalCA$887InterestCA$174BalanceCA$40,790
Payment #79PaymentCA$1,061PrincipalCA$891InterestCA$170BalanceCA$39,899
Payment #80PaymentCA$1,061PrincipalCA$894InterestCA$166BalanceCA$39,005
Payment #81PaymentCA$1,061PrincipalCA$898InterestCA$163BalanceCA$38,106
Payment #82PaymentCA$1,061PrincipalCA$902InterestCA$159BalanceCA$37,205
Payment #83PaymentCA$1,061PrincipalCA$906InterestCA$155BalanceCA$36,299
Payment #84PaymentCA$1,061PrincipalCA$909InterestCA$151BalanceCA$35,390
Payment #85PaymentCA$1,061PrincipalCA$913InterestCA$147BalanceCA$34,476
Payment #86PaymentCA$1,061PrincipalCA$917InterestCA$144BalanceCA$33,559
Payment #87PaymentCA$1,061PrincipalCA$921InterestCA$140BalanceCA$32,638
Payment #88PaymentCA$1,061PrincipalCA$925InterestCA$136BalanceCA$31,714
Payment #89PaymentCA$1,061PrincipalCA$929InterestCA$132BalanceCA$30,785
Payment #90PaymentCA$1,061PrincipalCA$932InterestCA$128BalanceCA$29,853
Payment #91PaymentCA$1,061PrincipalCA$936InterestCA$124BalanceCA$28,917
Payment #92PaymentCA$1,061PrincipalCA$940InterestCA$120BalanceCA$27,976
Payment #93PaymentCA$1,061PrincipalCA$944InterestCA$117BalanceCA$27,032
Payment #94PaymentCA$1,061PrincipalCA$948InterestCA$113BalanceCA$26,084
Payment #95PaymentCA$1,061PrincipalCA$952InterestCA$109BalanceCA$25,132
Payment #96PaymentCA$1,061PrincipalCA$956InterestCA$105BalanceCA$24,176
Payment #97PaymentCA$1,061PrincipalCA$960InterestCA$101BalanceCA$23,217
Payment #98PaymentCA$1,061PrincipalCA$964InterestCA$97BalanceCA$22,253
Payment #99PaymentCA$1,061PrincipalCA$968InterestCA$93BalanceCA$21,285
Payment #100PaymentCA$1,061PrincipalCA$972InterestCA$89BalanceCA$20,313
Payment #101PaymentCA$1,061PrincipalCA$976InterestCA$85BalanceCA$19,337
Payment #102PaymentCA$1,061PrincipalCA$980InterestCA$81BalanceCA$18,357
Payment #103PaymentCA$1,061PrincipalCA$984InterestCA$76BalanceCA$17,372
Payment #104PaymentCA$1,061PrincipalCA$988InterestCA$72BalanceCA$16,384
Payment #105PaymentCA$1,061PrincipalCA$992InterestCA$68BalanceCA$15,392
Payment #106PaymentCA$1,061PrincipalCA$997InterestCA$64BalanceCA$14,395
Payment #107PaymentCA$1,061PrincipalCA$1,001InterestCA$60BalanceCA$13,395
Payment #108PaymentCA$1,061PrincipalCA$1,005InterestCA$56BalanceCA$12,390
Payment #109PaymentCA$1,061PrincipalCA$1,009InterestCA$52BalanceCA$11,381
Payment #110PaymentCA$1,061PrincipalCA$1,013InterestCA$47BalanceCA$10,367
Payment #111PaymentCA$1,061PrincipalCA$1,017InterestCA$43BalanceCA$9,350
Payment #112PaymentCA$1,061PrincipalCA$1,022InterestCA$39BalanceCA$8,328
Payment #113PaymentCA$1,061PrincipalCA$1,026InterestCA$35BalanceCA$7,302
Payment #114PaymentCA$1,061PrincipalCA$1,030InterestCA$30BalanceCA$6,272
Payment #115PaymentCA$1,061PrincipalCA$1,035InterestCA$26BalanceCA$5,238
Payment #116PaymentCA$1,061PrincipalCA$1,039InterestCA$22BalanceCA$4,199
Payment #117PaymentCA$1,061PrincipalCA$1,043InterestCA$17BalanceCA$3,156
Payment #118PaymentCA$1,061PrincipalCA$1,048InterestCA$13BalanceCA$2,108
Payment #119PaymentCA$1,061PrincipalCA$1,052InterestCA$9BalanceCA$1,056
Payment #120PaymentCA$1,061PrincipalCA$1,056InterestCA$4BalanceCA$0

For illustration only. This calculator does not constitute financial or legal advice. Consult a qualified advisor for your situation.


About this calculator

This calculator handles the most common loan structures: standard amortized loans (equal payments over the term), deferred-payment loans (interest-only for a period, then amortized), and fixed-coupon bonds. It is for anyone comparing loan offers, planning repayments, or checking how much interest they will pay over time.

Use it when you know the principal, interest rate, and term. You can choose payment frequency (monthly, bi-weekly, etc.) and compounding to match your loan. Results include the payment amount, total interest, and a full schedule so you can see how much of each payment goes to principal versus interest. For bonds, you can solve for price given a yield or for yield given a price.

How this is calculated

Amortized loan

An amortized loan has equal periodic payments (e.g. monthly) that include both interest and principal. Early in the term, most of each payment goes to interest; as the balance decreases, more goes to principal. The payment is set so the balance reaches zero at the end of the term. Used for mortgages, auto loans, and personal loans.

The payment amount is given by the standard amortization formula:

Payment = P × [r(1+r)n] / [(1+r)n − 1]

where P is principal, r is the periodic interest rate (converted from your stated annual rate and compounding), and n is the number of payments. Compounding (annually, semi-annually, monthly, etc.) determines how the annual rate is converted to a per-payment rate; e.g. 6% compounded semi-annually gives a slightly lower effective monthly rate than 6% compounded monthly. Continuous compounding uses e^(r×t) − 1 per period.

Deferred payment loan (interest-only then amortize)

This loan has two phases. In the first phase you pay interest only—no principal—so the balance stays the same. After that, the loan amortizes over the remaining term using the same payment formula above with the remaining number of payments. Interest-only payment:

Interest-only payment = Principal × (annual rate / periods per year)

Common in some mortgages and construction loans.

Bond

A bond pays periodic coupon interest (face value × coupon rate) and repays face value at maturity. There is no principal paydown until maturity. The bond price is the present value of all future coupons plus the face value, discounted at the yield per period. Yield to maturity (YTM) is the annualized return if you hold to maturity; we solve for the yield that makes this present value equal to the price.

Price = Σ (Coupon / (1+y)t) + Face / (1+y)n

where y is the yield per period and n is the number of periods. Buy at a discount (price < face) → YTM > coupon rate; buy at a premium → YTM < coupon rate.

Assumptions

We assume a fixed interest rate and that payments are made on schedule. For bonds, we assume no default and that coupons are paid on the frequency you select. This calculator does not constitute financial or legal advice; consult a qualified advisor for your situation.

Ready to run Monte Carlo and 20+ scenarios with your real numbers?

Get started free