A Totally Money loan comparison is a way to review personal-loan offers and see how their quoted payments and costs differ. This page’s calculator estimates a fixed-rate loan’s monthly payment and total interest from the amount, APR and term; it does not retrieve or rank live offers from Totally Money or any lender.
Formula
The calculator uses the standard fixed-payment amortization formula. It calculates the payment from principal, monthly interest rate and number of monthly payments:
- Monthly payment: M = P × r / [1 − (1 + r)−n]
- Total interest: I = (M × n) − P
P is the amount borrowed in dollars; APR is the annual percentage rate entered as a percentage; r = APR ÷ 1,200 is the monthly rate as a decimal; n = years × 12 is the number of monthly payments; M is the monthly payment in dollars; and I is estimated interest in dollars. The formula assumes the rate stays fixed and uses monthly payments. The calculator displays the payment rounded to cents, then uses that displayed payment to calculate total interest.
Worked Example
Using the calculator’s default inputs—$20,000 principal, 8% APR and 5 years:
- Convert the APR to a monthly rate: 8 ÷ 1,200 = 0.0066667.
- Convert the term to payments: 5 × 12 = 60 months.
- Apply the payment formula: 20,000 × 0.0066667 ÷ [1 − (1.0066667)−60] ≈ $405.53 per month, rounded to cents.
- Calculate total interest using the rounded payment: $405.53 × 60 − $20,000 = $4,331.80.
These are estimates under the formula’s assumptions; a lender’s actual payment schedule may differ because of fees, payment dates, rounding conventions or other contract terms.
Assumptions
- The interest rate is fixed for the entire term.
- Payments are equal monthly payments, made at the end of each monthly period.
- Interest compounds monthly at APR divided by 12.
- Fees, taxes, insurance, optional products and other charges are not included.
What a Totally Money Loan Comparison Means
Totally Money is a UK personal-finance comparison service. A loan comparison page or eligibility tool may present offers based on information a user provides, but the exact services, available lenders and displayed terms can change. This calculator is separate: it performs general loan arithmetic and does not connect to a comparison service, check eligibility, fetch current APRs or confirm that an offer is available.
When reviewing any comparison result, distinguish between a representative example and the terms actually offered to you. A comparison result is not the loan agreement. Check the lender’s own disclosure and agreement for the amount, repayment schedule, total repayable, rate type and any charges before relying on a quoted figure. Use the actual rate and term shown for the offer as inputs rather than treating the example defaults here as market rates.
How to Compare Loan Offers
For a meaningful comparison, compare offers for the same borrowing amount and repayment period. A lower monthly instalment alone does not establish that an offer costs less overall: extending the term can reduce the payment while increasing the number of interest-bearing months. Compare both the recurring payment and the total amount payable shown in the lender’s documents.
- Amount and term: Make sure each option covers the same amount and that you understand the full repayment period.
- APR and rate structure: Note the quoted APR and whether the rate is fixed or can change. This calculator assumes fixed interest.
- Total repayable: Check the lender’s stated total, including any applicable charges; this calculator’s interest result excludes fees.
- Payment schedule: Confirm the number, timing and amount of instalments, along with any final payment that differs.
- Offer conditions: Read what the lender says about the specific offer and whether the displayed terms are conditional.
For example, an offer with a smaller monthly payment could have a longer term. To compare its cost with another offer, calculate each using its own APR and term, then check the lender’s full repayment figures. Do not compare one offer’s monthly payment with another offer’s total cost as if they were the same measure.
Calculator Limits and Common Mistakes
This calculation is most useful for a conventional fixed-rate loan with equal monthly payments. It is not a quote, approval prediction, affordability assessment or comparison of live products. It cannot account for a variable rate, irregular payments, payment holidays, introductory rates, fees rolled into the balance, late charges or early repayment terms. Those details require the lender’s figures and may change the amount actually paid.
Common input errors include entering 8 instead of 0.08 for an 8% APR (the calculator expects 8), entering months where the term field asks for years, or using a different loan amount than the offer. The example term is five years, which means 60 payments. Small discrepancies between this estimate and a lender’s figure can arise from rounding and the dates on which payments are due. If a lender supplies an exact payment and total repayable, use those disclosed figures to understand that specific offer.
Frequently Asked Questions
Does this calculator compare live Totally Money loans?
No. It calculates payment and interest for a loan using the inputs provided. It does not access Totally Money, lender listings, personal eligibility information or current offers.
Is an eligibility result the same as loan approval?
No. A comparison result or eligibility indication is not a lender’s final decision or a completed loan agreement. The lender’s own documents state the terms of any actual offer.
Why might my lender’s monthly payment differ from this result?
The calculation assumes fixed interest, equal end-of-month payments and no added charges. Fees, payment dates, rounding methods, a different rate structure or other contract terms can change the disclosed payment.
Does a lower monthly payment mean a loan costs less?
Not necessarily. A longer repayment term can lower each instalment but increase total interest. Compare the term and the lender’s total repayable as well as the monthly amount.
Does the total interest include fees?
No. It is calculated as rounded monthly payment multiplied by the number of payments, minus the principal. Fees and other charges are excluded, so check the lender’s disclosure for the full cost figures.
The result is an estimate for educational use, and the lender’s disclosure gives the exact figures.
Related
Formula used
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 | $ | p * (apr / 1200) / (1 - (1 + apr / 1200) ^ -(yrs * 12)) | 2 out int | Total interest | $ | pmt * yrs * 12 - p | 2
Each line is one input (in, sel, list) or one result (out: label, unit, formula, decimals). How the calculators work
Method: the standard loan formula for this calculation, fixed rate and monthly compounding unless stated, rounded as each result states. Not financial advice; no lender, rate or product is recommended. See formulas and assumptions, the disclaimer or report an error.
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