Solar Loan Calculator: Estimate Your Monthly Solar Loan Payments

Use this solar loan calculator to determine the monthly payments and total interest you'll pay toward a solar loan.
Annie Millerbernd
By Annie Millerbernd 
Updated
Edited by Kim Lowe

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Solar panel systems have high upfront costs, but you should make the money back in savings on electricity over time. If you’re planning to finance the solar panels, a solar loan calculator can help you determine how much you can afford to borrow.

Use this solar loan calculator to estimate monthly payments toward your loan and how much interest you’ll pay.

Understanding your solar loan calculator results

Monthly payment is the amount you’ll pay each month toward your loan. Part goes to interest and the rest goes to the principal.

Total interest payments is the amount you’ll pay in interest alone over the lifetime of the loan. This number tells you how much it actually costs to borrow the funds.

Total loan payments is the amount you’ll pay by the end of the loan, including the loan principal and interest.

Solar loan calculator

Loan details

2023

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

How will origination fees be paid?
How are origination fees calculated?
Your loan estimate
Monthly payment

$212.47

Total principal
$10,000

Total interest payments
$2,748.23

Total loan payments
$12,748.23

Payoff date
05 / 2028

2023

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Payment datePrincipalInterestMonthly paymentPrincipal balance
May 2023$129.14$83.33$212.47$9,870.86
Jun 2023$130.21$82.26$212.47$9,740.65
Jul 2023$131.30$81.17$212.47$9,609.35
Aug 2023$132.39$80.08$212.47$9,476.96
Sep 2023$133.50$78.97$212.47$9,343.46
Oct 2023$134.61$77.86$212.47$9,208.85
Nov 2023$135.73$76.74$212.47$9,073.12
Dec 2023$136.86$75.61$212.47$8,936.26
Jan 2024$138.00$74.47$212.47$8,798.26
Feb 2024$139.15$73.32$212.47$8,659.11
Mar 2024$140.31$72.16$212.47$8,518.80
Apr 2024$141.48$70.99$212.47$8,377.32
May 2024$142.66$69.81$212.47$8,234.66
Jun 2024$143.85$68.62$212.47$8,090.81
Jul 2024$145.05$67.42$212.47$7,945.76
Aug 2024$146.26$66.21$212.47$7,799.51
Sep 2024$147.47$65.00$212.47$7,652.03
Oct 2024$148.70$63.77$212.47$7,503.33
Nov 2024$149.94$62.53$212.47$7,353.39
Dec 2024$151.19$61.28$212.47$7,202.20
Jan 2025$152.45$60.02$212.47$7,049.74
Feb 2025$153.72$58.75$212.47$6,896.02
Mar 2025$155.00$57.47$212.47$6,741.02
Apr 2025$156.30$56.18$212.47$6,584.72
May 2025$157.60$54.87$212.47$6,427.12
Jun 2025$158.91$53.56$212.47$6,268.21
Jul 2025$160.24$52.24$212.47$6,107.98
Aug 2025$161.57$50.90$212.47$5,946.41
Sep 2025$162.92$49.55$212.47$5,783.49
Oct 2025$164.27$48.20$212.47$5,619.22
Nov 2025$165.64$46.83$212.47$5,453.57
Dec 2025$167.02$45.45$212.47$5,286.55
Jan 2026$168.42$44.05$212.47$5,118.13
Feb 2026$169.82$42.65$212.47$4,948.31
Mar 2026$171.23$41.24$212.47$4,777.08
Apr 2026$172.66$39.81$212.47$4,604.42
May 2026$174.10$38.37$212.47$4,430.32
Jun 2026$175.55$36.92$212.47$4,254.76
Jul 2026$177.01$35.46$212.47$4,077.75
Aug 2026$178.49$33.98$212.47$3,899.26
Sep 2026$179.98$32.49$212.47$3,719.28
Oct 2026$181.48$30.99$212.47$3,537.81
Nov 2026$182.99$29.48$212.47$3,354.82
Dec 2026$184.51$27.96$212.47$3,170.31
Jan 2027$186.05$26.42$212.47$2,984.25
Feb 2027$187.60$24.87$212.47$2,796.65
Mar 2027$189.17$23.31$212.47$2,607.49
Apr 2027$190.74$21.73$212.47$2,416.75
May 2027$192.33$20.14$212.47$2,224.42
Jun 2027$193.93$18.54$212.47$2,030.48
Jul 2027$195.55$16.92$212.47$1,834.93
Aug 2027$197.18$15.29$212.47$1,637.75
Sep 2027$198.82$13.65$212.47$1,438.93
Oct 2027$200.48$11.99$212.47$1,238.45
Nov 2027$202.15$10.32$212.47$1,036.30
Dec 2027$203.83$8.64$212.47$832.47
Jan 2028$205.53$6.94$212.47$626.93
Feb 2028$207.25$5.22$212.47$419.69
Mar 2028$208.97$3.50$212.47$210.71
Apr 2028$210.71$1.76$212.47$0.00
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Personal loans from our partners

Universal Credit logo
Check Rate

on Universal Credit

Universal Credit

4.5

NerdWallet rating 
Universal Credit logo

4.5

NerdWallet rating 
APR 
11.69-35.99%

Loan amount 
$1,000 - $50,000

Check Rate

on Universal Credit

Discover logo
Check Rate

on Discover

Discover

5.0

NerdWallet rating 
Discover logo

5.0

NerdWallet rating 
APR 
6.99-24.99%

Loan amount 
$2,500 - $40,000

Check Rate

on Discover

Upstart logo
Check Rate

on Upstart

Upstart

4.5

NerdWallet rating 
Upstart logo

4.5

NerdWallet rating 
APR 
6.5-35.99%

Loan amount 
$1,000 - $50,000

Check Rate

on Upstart

Achieve logo
Check Rate

on Achieve

Achieve

5.0

NerdWallet rating 
Achieve logo

5.0

NerdWallet rating 
APR 
7.99-35.99%

Loan amount 
$5,000 - $50,000

Check Rate

on Achieve

SoFi logo
Check Rate

on SoFi

SoFi

5.0

NerdWallet rating 
SoFi logo

5.0

NerdWallet rating 
APR 
8.99-25.81%

Loan amount 
$5,000 - $100,000

Check Rate

on SoFi

Pre-qualify for an unsecured personal loan

Pre-qualifying allows you to see the rate a lender can offer you without applying for a loan. You can see personalized offers from multiple lenders without impacting your credit score when you pre-qualify with NerdWallet.

Once you’ve reviewed your rates, you can start an application.

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Other solar panel financing options

Compare home improvement loans: See which lenders offer the best personal loans for home improvements.

Use a home equity loan: A home equity loan can provide a lump sum of money at a low rate.

Borrow a home equity line of credit: The best HELOC lenders offer low, variable rates.Cash-out refinance: Lower your mortgage rate and get extra cash with a cash-out refinance.

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