This calculator answers the question every borrowing decision starts with: what would that actually cost per month? Pick a personal loan amount from $500 to $5,000, a term, and an APR — your real offer's number, or a tier estimate from the rates guide — and the payment, total, and interest appear instantly. The extra-payment field shows what early payoff is worth, which is the most underused lever in small-dollar personal loan borrowing.
Below the Rely Credit tool: how the math works in plain English, worked examples at the amounts people actually request, and the three ways borrowers get the most out of ten minutes here before submitting anything through Rely Credit.
The Calculator
Set the amount, set the term, type an APR, and read three numbers: the monthly payment, the total of payments, and the total interest.
Every figure is a preliminary estimate for planning only. Your lender sets the actual APR, payment, and term of any personal loan offer.
The workflow that pays: run your personal loan amount at 6, 12, and 18 months first, so the term trade-off is visible before any offer anchors you. Then, when real personal loan offers arrive through Rely Credit, type each offer's actual APR and term into the tool and let the totals — not the monthly payments — rank them. Two minutes per offer, and the comparison the rates page teaches becomes mechanical.
How the Math Works
The formula is standard amortization: each payment covers that month's interest on the remaining balance, and whatever is left reduces principal — which is why early months are interest-heavy.
Nothing exotic happens inside the box above, and demystifying it is worth two minutes because the same mechanics govern every fixed personal loan you will ever sign. The monthly personal loan rate is your APR divided by twelve. Each month, the balance accrues that rate; your fixed payment first covers the accrued interest, then chips the principal. Because the balance starts at its largest, the first payments carry the most interest — on a $2,000 personal loan at 24% APR over 12 months, roughly $40 of the first $189 payment is interest, but only about $4 of the last one. Three practical consequences fall out of that shape. Early extra payments beat late ones, because they shrink the balance while the balance still matters. The payoff amount is always a little less than remaining-payments-times-payment, because future interest never accrues. And the same personal loan APR over a longer term always costs more in total — time, not rate, is what the extended schedule sells you.
Worked Examples at Every Network Size
Worked examples at the network's common sizes, all at a representative 24% APR — anchor numbers to carry into any comparison.
| Amount | 6 mo payment | 12 mo payment | 18 mo payment | Interest: 6 vs 18 mo |
|---|---|---|---|---|
| $1,000 | ≈ $179 | ≈ $95 | ≈ $67 | ≈ $72 vs $206 |
| $2,000 | ≈ $358 | ≈ $189 | ≈ $133 | ≈ $143 vs $412 |
| $3,000 | ≈ $537 | ≈ $284 | ≈ $200 | ≈ $215 vs $618 |
| $4,000 | ≈ $716 | ≈ $378 | ≈ $266 | ≈ $287 vs $824 |
| $5,000 | ≈ $895 | ≈ $473 | ≈ $333 | ≈ $358 vs $1,030 |
The last column is the honest one: term choice moves total cost far more than most people expect, and the effect scales with the amount. Read down that column once and the instinct to grab the smallest monthly payment quietly corrects itself — which is the whole reason the column exists. Each amount links to its full Rely Credit guide — who borrows that figure, the documents involved, and the tier-specific advice this table cannot carry.
Three Ways to Use It Well
Use the tool three ways: size the request before quoting, stress-test the payment against bad months, and rank real offers by total cost.
Sizing. Before any request, find the payment your budget genuinely clears after essentials — then work backward to the amount that payment supports at a realistic APR. A budget-first personal loan number protects you from the round-number trap every category guide warns about. Stress-testing. Type your planned amount, then imagine the payment landing in your three worst recent months. If the personal loan payment survives all three on paper, it will survive reality; if not, lengthen the term or shrink the request now, while it is free. Ranking offers. When responses arrive, enter each one exactly and compare totals. The friendliest monthly payment frequently belongs to the most expensive personal loan in the batch — a longer term at a higher APR — and only the total exposes it. Ten minutes here before accepting any personal loan is the cheapest financial advice available anywhere on this site.
What the Calculator Cannot Show
The numbers the calculator cannot show: fees folded into APR, autopay discounts, and the value of a survivable payment over a technically-cheaper one.
Three footnotes keep the tool honest. First, APR already contains mandatory fees — which is exactly why you should type the offer's APR, never its advertised interest rate; the APR guide covers the difference that costs people real money. Second, many Rely Credit network lenders discount the rate slightly for autopay enrollment — a quarter to half a point is common — so the offer you accept can end up marginally cheaper than the one you modeled. Third, and most important: the mathematically cheapest schedule is not automatically the right one. A 6-month term that collapses in month four costs more — in late fees, in credit damage, in stress — than an 18-month term repaid faithfully with voluntary extra payments. The calculator ranks costs; only your budget can rank risks. Use both, and the ratio math on the eligibility page as the tiebreaker.
Run It Backward: Budget-First Sizing
The calculator doubles as a budget instrument: run it backward from the payment you can afford, and it prices the personal loan your life actually supports.
Most visitors type an amount and read a payment; the stronger move runs the other direction, and it takes no more time. Start from your budget: after rent, food, transport, and existing obligations, find the monthly figure that could leave checking twelve times without drama — be pessimistic, because the personal loan will not care about your optimism. Then adjust the amount field until the payment matches that figure at a realistic APR from the tier table. The amount on screen is now a budget-issued borrowing limit, decided before any offer could flatter you. Borrowers who arrive at the Rely Credit form with that number consistently report calmer decisions in reviews: the offers get compared against a limit, not against desire.
The same backward run settles the classic argument between spouses or roommates about what is affordable — the Rely Credit tool is neutral, the arithmetic is public, and the personal loan discussion moves from feelings to a number in about ninety seconds. Online loan matching works best when the request arrives pre-shrunk to reality, and this page is where the shrinking happens.
Four Ways People Fool Their Own Math
Common calculator mistakes: typing the interest rate instead of APR, ignoring the total column, comparing different terms as if equal, and modeling the best month instead of the worst.
Four errors account for most misleading personal loan runs, and each one flatters the wrong offer. Rate instead of APR. A personal loan offer advertising 19.9% interest with an origination fee might carry a 26% APR; type the smaller number and the tool flatters the personal loan by the size of the hidden fee. Always use APR. Payment tunnel vision. The monthly figure is the loudest number and the least informative alone; a personal loan at $95 a month for 18 months costs more than one at $120 for 12. Read totals. Cross-term comparison. Two offers at different terms cannot be ranked by payment at all — normalize on total of payments, or run both at the same term if the lenders offer it. Best-month modeling. Testing affordability against your flushest recent month guarantees a payment that fails in the lean ones; model the worst three months of the last year instead, the way the ratio math effectively does. The tool computes honestly; these habits make sure the inputs deserve it.
Three Visits: Where the Tool Fits the Journey
Where the calculator fits in the whole journey: before the guides to size the idea, before the request to fix the limit, and after the offers to pick the winner.
This tool earns three separate visits in a typical borrowing arc. The first visit is exploratory — a rough amount, three terms, tier-guess APRs — and it usually ends with a trip to the right amount guide, from the $1,000 loan playbook up to the $5,000 ceiling, with a payment range in mind. The second visit happens the night before requesting, running the budget-first method above until the personal loan limit is fixed; that number rides into the Rely Credit form the next morning. The third visit is the decisive one: real offers in hand, each typed in exactly, totals compared, winner chosen. Three visits, maybe twenty minutes combined, and every one of them substitutes arithmetic for hope. Skipping any of the three is survivable; skipping all three is how the wrong offer gets signed with confidence.
It is worth saying what the tool deliberately is not. It is not a pre-qualification — Rely Credits and its online loan matching do that through the actual request, free and without score impact at the matching stage. It is not advice — the category guides carry the judgment calls. And it is not a commitment device — nothing here reaches the network. It is a slide rule with better ergonomics, and in a market where the difference between reliable personal loan choices and regrettable ones is mostly whether anyone multiplied, a public slide rule is worth a page of its own. Bookmark it; the arithmetic will be exactly this honest next time too. Online loan matching supplies the competing numbers; this page makes sure you can read them.
Frequently Asked Questions
How accurate is this calculator?
The arithmetic is exact for the numbers you enter — the standard amortization formula every lender uses. What it cannot know is your actual offer: APR and term come from the lender you match with, so treat every output as a planning estimate, not a quote.
What APR should I type in if I don't have an offer yet?
Use the tier that matches your file from the Rely Credit rates page: try 12% if your credit is strong, 22% for the fair-credit middle, and 32% to stress-test the rebuilding tier. Running all three takes thirty seconds and brackets reality; the truth will land between the middle and whichever edge your file resembles.
Why does the extra-payment field change the months, not the payment?
Because that is how fixed personal loans work: your required payment stays the same, and extra money shortens the schedule from the far end. The interest savings come from the months that no longer happen.
Does using this calculator affect my credit?
Not at all. It runs entirely on this page — nothing you type is sent anywhere, no account is needed, and no inquiry of any kind occurs. It is a planning tool, full stop.