Loan Amount (₹)
Rate Of Interest (p.a) (%)
Loan Tenure (%)
Flat Interest Rate | Reducing Balance Interest Rate | |
---|---|---|
Monthly EMI | ||
Total Interest | ||
Total Amount |
Flat Interest Balance
Reducing Interest Balance
A Flat vs Reducing Rate Calculator is a financial tool that helps borrowers compare the cost of loans under two different interest rate calculation methods: Flat Interest Rate and Reducing Balance Interest Rate. It provides a detailed analysis of the total loan cost, monthly EMI, and interest payments under both methods, enabling individuals to make an informed borrowing decision.
The flat interest rate is calculated on the entire loan amount for the full loan tenure.
Flat Interest Rate = (Loan Amount × Rate of Interest × Loan Tenure) ÷ 100
Monthly EMI (Flat Interest) = (Loan Amount + Total Interest) ÷ (Loan Tenure × 12)
Example:
Flat Interest = (1,00,000 × 10 × 12) ÷ 100 = ₹1,20,000
Monthly EMI (Flat Interest) = (1,00,000 + 1,20,000) ÷ (12 × 12) = ₹1,527.78
In a reducing rate method, interest is recalculated on the remaining principal balance after each payment.
Monthly EMI (Reducing Interest) = [Loan Amount × (Rate of Interest ÷ 12) × (1 + (Rate of Interest ÷ 12)) ^ (Loan Tenure × 12)] ÷ [(1 + (Rate of Interest ÷ 12)) ^ (Loan Tenure × 12) - 1]
Example:
Monthly EMI (Reducing Interest) = [1,00,000 × (0.10 ÷ 12) × (1 + (0.10 ÷ 12)) ^ (12 × 12)] ÷ [(1 + (0.10 ÷ 12)) ^ (12 × 12) - 1]
Monthly EMI (Reducing Interest) = ₹1,195.08
Total Interest Saved = Total Interest (Flat) – Total Interest (Reducing)
Example:
Total Interest Saved = ₹1,20,000 – ₹72,091.27 = ₹47,908.73
Criteria |
Flat Interest Rate |
Reducing Interest Rate |
Interest Calculation |
Based on the original loan amount |
Based on the remaining principal after each EMI |
EMI Amount |
Remains constant throughout |
Decreases over time |
Total Interest Paid |
Higher |
Lower |
Preferred For |
Short-term loans, personal loans |
Home loans, car loans, long-term loans |