— Loans & Debt
Loan Tenure Calculator
Know the payment you can afford? Find out how long the loan will take to clear — and how much sooner you would finish by paying just a little more.
Loan tenure
5 yrs 1 mo
- Total interest
- $5,511.14
- Total payment
- $30,511.14
- Number of months
- 62
- At a 10% higher EMI
- 4 yrs 6 mos
- At a 25% higher EMI
- 3 yrs 11 mos
— Amortization schedule
| Year | Principal | Interest | Balance |
|---|---|---|---|
| Year 1 | $4,149.98 | $1,850.02 | $20,850.02 |
| Year 2 | $4,494.42 | $1,505.58 | $16,355.6 |
| Year 3 | $4,867.46 | $1,132.54 | $11,488.15 |
| Year 4 | $5,271.45 | $728.55 | $6,216.69 |
| Year 5 | $5,708.98 | $291.02 | $507.71 |
| Year 6 | $507.71 | $3.46 | $0 |
— Balance over the payoff
Download— How it works
n = −ln(1 − P·r ÷ payment) ÷ ln(1 + r) months, where r is the monthly rate. The payment must exceed the monthly interest, or the loan never reduces.
Working the payment calculation backwards
Most loan calculators take a tenure and tell you the payment. This one does the reverse: you fix the monthly payment you can comfortably manage, and it tells you how long the loan will take to clear. That is often the more useful question — you know what you can afford each month, and you want to know when you will be free of the debt. The answer comes from a clean rearrangement of the payment formula, so there is no guesswork involved.
The one rule the maths insists on: your payment must be larger than the first month’s interest. If it is not, the payment is entirely swallowed by interest and the balance never falls — the calculator flags this rather than returning an impossible answer.
Worked example — $25,000 at 8% with a $500 monthly payment: The monthly interest starts at about $167, so the $500 payment comfortably reduces the balance. The loan clears in about 5 years 2 months, with roughly $5,500 of interest. Raise the payment by 25% to $625 and it finishes more than a year sooner.
Why paying a little more cuts the term so much
The relationship between the payment and the tenure is not linear — a small rise in the payment shortens the term far more than you would expect. That is because the extra money goes straight to principal, which then stops accruing interest for the rest of the loan, compounding the benefit. The calculator shows the tenure at your payment and at 10% and 25% higher, so you can see the effect directly: often a modest increase knocks years off.
It is the most actionable insight in personal finance — if you can stretch the monthly payment even a little, the savings in both time and interest are usually outsized. Prepayments and a yearly step-up, in the advanced options, work the same way and stack on top.
— Reader questions
How do I work out my loan tenure from the payment?
Take the loan amount, the annual rate and the payment you can pay, and the tenure follows from rearranging the payment formula: n = −ln(1 − P·r ÷ payment) ÷ ln(1 + r), where r is the monthly rate. This calculator does it for you and also shows the total interest and a year-by-year schedule.
What if my payment is too low?
If the payment is no larger than the first month’s interest, the payment never touches the principal and the loan cannot be repaid — it would run forever. The calculator detects this and flags “it never pays off”, showing you the monthly interest you need to beat.
How much sooner will I finish if I pay more?
Usually a lot — the tenure falls faster than the payment rises, because the extra goes straight to principal and saves all its future interest. The calculator shows your tenure at the chosen payment and at 10% and 25% higher so you can see the gain for yourself.
Do prepayments change the answer?
Yes. A one-time lump sum or a recurring extra payment reduces the principal ahead of schedule, so the loan clears sooner than the payment alone would manage. Enter them under the advanced options and the calculator shows the shortened tenure and the interest saved.
Is this the same as the payment calculator?
It is the inverse. A payment calculator fixes the tenure and solves for the payment; this fixes the payment and solves for the tenure. Use whichever matches what you know — your affordable monthly amount, or the term you want.