OD (Overdraft) Interest Calculator
Compute interest payable on an overdraft based on average utilization, rate, and period. OD interest is usually charged on a daily balance.
Free No sign-up Updated October 2025

Enter details

₹
Used only to show utilization %.
₹
%
If dates are empty, we’ll use the “Days” box below.
days

Formulas

Daily simple: I = U × (R/100) × (D/365)
Monthly comp (approx): I = U × ((1 + R/12/100)M − 1), where M ≈ D/30.