AFG Repayment Calculator: Estimate Loan Payments

An AFG repayment calculator estimates a loan’s monthly payment and total interest from the principal, annual interest rate, and repayment term. Enter the figures supplied for your loan to see an approximate payment schedule; “AFG” alone does not identify a particular loan or a standard set of repayment terms.

Formula

The calculator uses the standard fixed-rate, fully amortizing loan payment formula. It first finds the monthly payment, rounds that payment to the nearest cent, then estimates total interest using that rounded payment over the full term.

Monthly payment: M = round[P × r ÷ (1 − (1 + r)⁻ⁿ), 2]

Total interest: I = M × n − P

• P is the starting loan principal, in dollars.
• APR is the annual percentage rate entered as a percentage, such as 8 for 8%.
• r is the monthly rate as a decimal: APR ÷ 1,200.
• n is the number of monthly payments: loan term in years × 12.
• M is the estimated monthly payment, in dollars.
• I is estimated interest paid across the scheduled payments, in dollars.

This formula assumes equal payments made monthly. It does not determine a lender’s actual APR or establish that a loan is available. Use figures from the relevant loan documents or ask the lender for the exact amount financed, rate, and scheduled term.

Worked Example

Using the calculator’s defaults—$20,000 borrowed, 8% APR, and a five-year term:

1. Convert the annual rate to a monthly decimal: 8 ÷ 1,200 = 0.0066667.
2. Convert the term to payments: 5 × 12 = 60 months.
3. Substitute into the payment formula: $20,000 × 0.0066667 ÷ [1 − (1.0066667)⁻⁶⁰] = approximately $405.53 per month after rounding to cents.
4. Calculate scheduled payments: $405.53 × 60 = $24,331.80.
5. Subtract the principal: $24,331.80 − $20,000 = $4,331.80 estimated total interest.

The payment and interest outputs are estimates based on the formula and the displayed rounding. A lender’s payment schedule may differ if its payment dates, rate calculation, rounding, or included charges differ.

Assumptions

• The interest rate remains fixed for the entire term.
• Payments are equal, made monthly, and assumed to arrive at the end of each monthly period.
• Interest compounds monthly at APR ÷ 12.
• The calculation excludes fees, taxes, insurance, PMI, escrow, and other charges because they are not inputs.
• The estimate assumes the loan is repaid through the stated number of scheduled payments, with no missed or extra payments.

What “AFG” Means for This Calculation

“AFG” can be an abbreviation, organization name, product label, or reference used in a particular country or lending context. It does not, by itself, tell the calculator the loan balance, repayment frequency, interest method, or applicable charges. This page therefore treats the question as a request for a general repayment calculator, not as a claim about a named lender or a specific AFG loan.

Before using any result, confirm what the abbreviation refers to and whether the advertised figure is an interest rate, APR, or another measure. APR and nominal interest rates can be presented differently, especially when fees or non-monthly calculations are involved. Enter the rate and principal that match the loan terms you are checking; do not infer them from the initials.

How to Use the Estimate

• Loan amount: Enter the amount on which interest will be charged, rather than an amount that includes charges unless those charges are financed.
• Interest rate: Enter the annual rate as a percentage. For example, type 8 for 8%, not 0.08.
• Loan term: Enter the repayment length in years. The calculator converts it to monthly payments.
• Read both outputs: Monthly payment is the estimated regular installment; total interest is the estimated interest across all installments, not the total amount repaid.

For the example, the estimated total repaid is $24,331.80: the $20,000 principal plus $4,331.80 interest. That figure does not include charges omitted from the inputs. To compare scenarios arithmetically, change one input at a time and note that a longer term can reduce the scheduled monthly payment while increasing the number of months over which interest is paid. The calculation alone does not assess suitability or approval.

Common Problems and Limits

A frequent input error is entering the APR as a decimal. Since the field expects a percentage, 8 means 8%; entering 0.08 means 0.08% and produces a very different estimate. Another common mismatch is using the amount requested instead of the final principal after financed charges or a down payment. Check the loan documents for the figure that actually accrues interest.

Rounding also matters. This calculator rounds each scheduled payment to cents and calculates total interest from that rounded payment. Real payment schedules can include a final adjustment, irregular first period, daily interest, changing rates, or fees. A variable-rate loan cannot be represented accurately by a single fixed APR for its full term. Extra repayments, payment holidays, and missed installments also change the balance and are not modelled here.

Use the result as a planning estimate, not as a payoff quote or a substitute for the loan’s repayment schedule. If a lender gives a different figure, ask which principal, rate, timing, fees, and rounding method produced it.

Frequently Asked Questions

What does AFG stand for in a repayment calculator?
AFG can mean different things depending on the context. The abbreviation alone does not identify a universal loan formula or set of terms, so confirm the specific product or organization before relying on any loan figures.

How do I calculate a monthly loan repayment?
For a fixed-rate loan with equal monthly payments, convert APR to a monthly decimal by dividing by 1,200, convert years to months, and apply the amortizing-payment formula shown above. This calculator performs those steps and rounds the payment to cents.

Does the monthly payment include fees and insurance?
No. The calculator only uses principal, APR, and term. It does not include fees, taxes, insurance, PMI, or escrow; check the loan disclosure for the actual scheduled amount and any separate charges.

Why is my lender’s repayment amount different?
The lender may use different loan figures, payment dates, rounding, interest calculations, or included charges. A variable rate or an irregular first payment can also change the result. Compare the assumptions and request the lender’s payment schedule.

Is total interest the same as total repayment?
No. Total repayment includes principal and interest. In this estimate, total interest is calculated as rounded monthly payment multiplied by the number of months, less the original principal; excluded charges are not part of either output.

The result is an estimate, and the lender’s disclosure gives the exact figures.

Related

• Loan Calculator Kuwait: Estimate Monthly Payments
• Loan Calculator Payment Options and Monthly Costs
• Loan Payment Calculator: Monthly Payments and Interest

in p | Loan amount | $ | 20000 | 1 | 100000000
in apr | Interest rate (APR) | % | 8 | 0.01 | 100
in yrs | Loan term | years | 5 | 0.0833 | 50
out pmt | Monthly payment | $ | round(p * (apr / 1200) / (1 - (1 + apr / 1200) ^ -(yrs * 12)), 2) | 2
out int | Total interest | $ | pmt * yrs * 12 - p | 2