1. What is a Meralco kWh Rate Calculator?

Definition: This calculator estimates electricity costs based on energy consumption in kWh and the current Meralco rate per kWh.

Purpose: It helps consumers estimate their electricity bills based on projected usage and current rates.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( C \) — Total electricity cost (Philippine Pesos)
• \( E_{kWh} \) — Energy consumption (kilowatt-hours)
• \( C_{kWh} \) — Cost per kWh (Philippine Pesos)

Explanation: The energy consumption is multiplied by the rate per kWh to calculate the total electricity cost.

3. Importance of Electricity Cost Calculation

Details: Accurate cost estimation helps with budgeting and identifying potential energy savings opportunities.

4. Using the Calculator

Tips: Enter your energy consumption in kWh and the current Meralco rate (default 11.5 ₱/kWh). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the current Meralco rate?
A: As of 2025, the estimated rate is 10-13 ₱/kWh (default 11.5 ₱/kWh). Check your bill for exact rates.

Q2: Does this include all charges on my bill?
A: No, this calculates only the energy charge. Your actual bill includes additional fees and taxes.

Q3: How do I find my energy consumption?
A: Check your previous electricity bills or use a kWh meter to measure appliance usage.

Q4: Why does the rate vary?
A: Rates change monthly based on generation charges, transmission costs, and other factors.

Q5: How can I reduce my electricity costs?
A: Use energy-efficient appliances, turn off unused devices, and consider shifting usage to off-peak hours.