Hong Life CalculatorsHow it works
Amount on instalment A = price − device discount − down payment. With equal monthly payments the payment is A × i ÷ (1 − (1 + i)−n), where i = annual fee rate ÷ 12 and n = months; the total fee is payment × n − A. With equal principal you repay A ÷ n each month plus i × the balance still owed, so payments fall each month and the total fee is A × i × (n + 1) ÷ 2. The phone plan (data/voice) fee is not included. Independent calculator, not affiliated with Apple.
⚠ Estimates for information only — not financial advice.
FAQ
Should I pay with a carrier instalment or a credit card instalment?
Compare the fee rates: enter each rate and look at “Total instalment fee”. Some cards offer interest-free months, which you can model with a 0% rate.
Does the result include AppleCare+ or the phone plan?
No. Add the AppleCare+ price to the phone price if you finance it together, and add the monthly plan fee separately.
Checked 11 Nov 2026. Preset prices: Korean launch prices announced by Apple and reported by Digital Daily (“애플, 아이폰18 프로 199만원·듀오 329만원 책정”, 10 Sep 2026); Apple’s own store page (apple.com/kr) could not be read by our checker, so confirm the price there before you buy. Instalment formulas: standard annuity (equal payment) and equal-principal amortisation.