# Personal Loan Calculator

> Repayments and total interest for any personal loan.

URL: https://paycheck-math.com/au/loan-calculator/  
Breadcrumbs: Home > Australia > Personal Loan Calculator  
Language: en-AU  
Rates checked: 2026-10-25  

Monthly payment, total interest and the real cost of fees for any loan amount, rate and term.

## Result with default inputs

Inputs: amount=20000, rate=9, months=36, fee_pct=0

**Monthly payment: $635.99**

- Total interest: $2,895.81

| Line | Item | Amount |
| --- | --- | --- |
| 1 | Fee | $0.00 |
| 2 | Money you receive | $20,000.00 |
| 3 | Total interest | $2,895.81 |
| 4 | Total cost of borrowing | $2,895.81 |
| 5 | **Monthly payment** | $635.99 |


To compute other inputs, call the JSON API: `https://paycheck-math.com/api/v1/calculate?path=%2Fau%2Floan-calculator%2F&amount=20000&rate=9&months=36` or open the page URL with the same query parameters.

## Payments by term

| Months | Monthly payment | Total interest |
| --- | --- | --- |
| 12 | $1,749 | $988 |
| 24 | $914 | $1,929 |
| 36 | $636 | $2,896 |
| 48 | $498 | $3,890 |
| 60 | $415 | $4,910 |

## How it's calculated

M = P × r / (1 − (1 + r)^−n)

Fees are deducted from the money you receive, which raises the real cost of borrowing.

## Questions people ask

### What APR is good for a personal loan?

It depends on your credit score. Borrowers with excellent credit see the lowest rates; compare the APR, which includes fees, not just the interest rate.

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Estimates for information only, not tax, legal or financial advice. Check with an adviser or the official tax authority.