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5/1 ARM Adjustable Rate Mortgage Calculator

💡 Direct Answer: A 5/1 ARM locks in a discounted introductory rate (typically 5.5% vs 6.5% fixed) for the first 5 years (60 months). On a $320,000 loan, your initial monthly P&I is $1,817—saving $206/month ($12,360 over 5 years) compared to a 30-year fixed loan before annual rate adjustments begin.

Mortgage Calculator with Amortization Schedule

Calculate your total monthly mortgage payment including principal, interest, taxes, insurance, and PMI with full amortization schedule export.

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Shortens loan term & saves interest

Monthly Payment Breakdown

Total Monthly Payment
$2,316.92

Principal & Interest: $1,816.92 • Taxes: $400 • Insurance: $100

Loan Amount Financed
$320,000
Total Interest Paid
$334,095.49
Total Loan Cost (P+I)
$654,095.49
Payoff Time
30.1 Years (361 mos)
Loading interactive chart...
Amortization Schedule (31 Years)
Showing first 31 rows
PeriodPaymentPrincipalInterestTotal InterestBalance
Year 1$21,803.04$4,310.62$17,492.42$17,492.42$315,689.38
Year 2$21,803.04$4,553.79$17,249.25$34,741.67$311,135.59
Year 3$21,803.04$4,810.65$16,992.39$51,734.06$306,324.94
Year 4$21,803.04$5,081.99$16,721.05$68,455.11$301,242.95
Year 5$21,803.04$5,368.67$16,434.37$84,889.48$295,874.28
Year 6$21,803.04$5,671.51$16,131.53$101,021.01$290,202.77
Year 7$21,803.04$5,991.43$15,811.61$116,832.62$284,211.34
Year 8$21,803.04$6,329.39$15,473.65$132,306.27$277,881.95
Year 9$21,803.04$6,686.42$15,116.62$147,422.89$271,195.53
Year 10$21,803.04$7,063.59$14,739.45$162,162.34$264,131.94
Year 11$21,803.04$7,462.04$14,341$176,503.34$256,669.9
Year 12$21,803.04$7,882.94$13,920.1$190,423.44$248,786.96
Year 13$21,803.04$8,327.62$13,475.42$203,898.86$240,459.34
Year 14$21,803.04$8,797.35$13,005.69$216,904.55$231,661.99
Year 15$21,803.04$9,293.59$12,509.45$229,414$222,368.4
Year 16$21,803.04$9,817.82$11,985.22$241,399.22$212,550.58
Year 17$21,803.04$10,371.61$11,431.43$252,830.65$202,178.97
Year 18$21,803.04$10,956.66$10,846.38$263,677.03$191,222.31
Year 19$21,803.04$11,574.72$10,228.32$273,905.35$179,647.59
Year 20$21,803.04$12,227.6$9,575.44$283,480.79$167,419.99
Year 21$21,803.04$12,917.34$8,885.7$292,366.49$154,502.65
Year 22$21,803.04$13,645.98$8,157.06$300,523.55$140,856.67
Year 23$21,803.04$14,415.73$7,387.31$307,910.86$126,440.94
Year 24$21,803.04$15,228.88$6,574.16$314,485.02$111,212.06
Year 25$21,803.04$16,087.9$5,715.14$320,200.16$95,124.16
Year 26$21,803.04$16,995.38$4,807.66$325,007.82$78,128.78
Year 27$21,803.04$17,954.07$3,848.97$328,856.79$60,174.71
Year 28$21,803.04$18,966.82$2,836.22$331,693.01$41,207.89
Year 29$21,803.04$20,036.69$1,766.35$333,459.36$21,171.2
Year 30$21,803.04$21,166.93$636.11$334,095.47$4.27
Year 31$4.29$4.27$0.02$334,095.49$0
National Benchmark Rates

Compare Top Mortgage & Refinance Rates

Estimated monthly principal & interest based on a $320,000 mortgage.

No SSN or Credit Pull Required
Loan ProductInterest RateAPREst. Monthly P&IAction
30-Year Fixed
6.68%6.75%$2,061/moCheck Rates
15-Year Fixed
5.92%6.04%$2,687/moCheck Rates
5/1 Adj. Rate (ARM)
6.18%6.55%$1,956/moCheck Rates
FHA / VA 30-Year
6.15%6.82%$1,950/moCheck Rates

Shop Multiple Lenders

Borrowers who compare 3+ quotes save an average of $84,000 over a 30-year term.

Points vs Zero-Cost

Paying discount points lowers your ongoing interest rate if you plan to stay 5+ years.

PMI Removal Rules

Request private mortgage insurance cancellation as soon as your loan-to-value reaches 80%.

Advertising & Affiliate Disclosure: ConvertSheet is an independent educational calculation service and may receive compensation from partner financial institutions when users click to compare rates. Zero client data or calculated figures are ever shared.

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About 5/1 ARM Adjustable Rate Mortgage Calculator

A 5/1 ARM is designed for homeowners planning to sell, relocate, or refinance within 5 to 7 years. You capture lower introductory payments during the initial fixed period.

Related Mortgage Calculator & Amortization Schedule Calculations

Help & Documentation

Frequently Asked Questions: 5/1 ARM Adjustable Rate Mortgage Calculator

Clear mathematical answers to key questions, calculations, and loan parameters.

How does a 5/1 ARM work?

A 5/1 ARM offers a fixed interest rate for the first 5 years. After year 5, the rate adjusts once annually based on prevailing benchmark indices (such as SOFR) subject to periodic adjustment caps.

Who should consider a 5/1 adjustable rate mortgage?

Buyers who plan to move within 5 years or borrowers expecting significant near-term income growth can capitalize on substantial interest savings during the introductory window.