Electricity Cost Guide

1.5 Ton AC Electricity Bill — Monthly Cost & Units Per Hour

A 1.5 ton AC uses 1.0–1.5 units per hour. At 8 hours daily use and ₹10/unit tariff, the monthly electricity bill is ₹2,400–₹2,880 for a 5-star inverter and ₹3,360–₹3,840 for a 3-star non-inverter.

1.5 Ton120–180 sq ft2400/mo (5-star)

Quick Answer

A 1.5 ton AC uses 1.0–1.5 units per hour. At 8 hours daily use and ₹10/unit tariff, the monthly electricity bill is ₹2,400–₹2,880 for a 5-star inverter and ₹3,360–₹3,840 for a 3-star non-inverter.

1.5 Ton AC — Units Per Hour & Monthly Bill

Based on 8 hours daily use at ₹9/unit tariff. Actual bill varies by city, set temperature, and room conditions.

AC TypeUnits/HourUnits/DayMonthly UnitsMonthly Bill
5-Star Inverter1 units8.0 units240 units2400
3-Star Inverter1.3 units10.4 units312 units2808
3-Star Non-Inverter1.5 units12.0 units360 units3600

Inverter vs Non-Inverter Savings

A 1.5 Ton 5-star inverter AC saves 1200 per month compared to a 3-star non-inverter. Over a 6-month season, that's 7200 in savings.

5-Star Inverter

2400/mo

3-Star Non-Inverter

3600/mo

Monthly Savings

1200/mo

What Affects Your 1.5 Ton AC Bill

Set Temperature

Every 1°C above 24°C saves ~3–5% electricity. Setting your 1.5 Ton AC to 26°C instead of 22°C saves ₹288–₹480 per month.

City Tariff

Electricity tariffs range from ₹6.5/kWh (Uttar Pradesh) to ₹9.5/kWh (Maharashtra). At ₹6.5/unit, your 1.5 Ton 5-star bill drops to ₹1733/mo. At ₹9.5/unit, it rises to ₹2533/mo.

Daily Usage Hours

The bill scales linearly with usage. At 4 hrs/day: ₹1200/mo. At 12 hrs/day: ₹3600/mo. At 16 hrs/day: ₹4800/mo.

Room Conditions

Top floor rooms with direct roof heat use 15–25% more power. Poor insulation and large west-facing windows add another 10–20%. A well-insulated room saves ₹360–₹600/mo.

Best For: Standard bedrooms, master bedrooms, medium rooms

A 1.5 Ton AC is ideal for Standard bedrooms, master bedrooms, medium rooms. It covers 120–180 sq ft efficiently and provides the right balance of cooling power and electricity cost.

120–180 sq ft1200W running2400/mo
See Best 1.5 Ton AC Reviews

Frequently Asked Questions

How many units does a 1.5 ton AC consume per month?
A 1.5 ton 5-star inverter AC consumes 240–288 units per month at 8 hours daily use. A 3-star non-inverter consumes 360–432 units per month. The difference is 120–144 units/month, saving ₹1,200–₹1,440 at ₹10/unit.
What is the monthly electricity bill for 1.5 ton AC?
Monthly bill for a 1.5 ton AC at 8 hrs/day: 5-star inverter: ₹2,400–₹2,880 | 3-star inverter: ₹2,880–₹3,120 | 3-star non-inverter: ₹3,360–₹3,840. At ₹10/unit tariff.
How much electricity does 1.5 ton AC use per hour?
A 1.5 ton AC uses 1.0–1.5 units per hour depending on type: 5-star inverter: 1.0–1.1 units/hr | 3-star inverter: 1.2–1.3 units/hr | 3-star non-inverter: 1.4–1.5 units/hr.
Is 1.5 ton AC expensive to run?
A 1.5 ton 5-star inverter AC costs ₹80–₹96 per day at 8 hrs/day and ₹10/unit. Monthly: ₹2,400–₹2,880. This is the most popular AC size in India and offers the best balance of cooling power and running cost.
How to reduce 1.5 ton AC electricity bill?
To reduce 1.5 ton AC bill: 1) Set temperature to 24–26°C (saves 18–22%), 2) Use sleep mode at night, 3) Clean filters monthly, 4) Use ceiling fan with AC, 5) Upgrade from 3-star to 5-star inverter (saves ₹960–₹1,440/month).

Calculate Your Exact AC Bill

Use our AC Bill Calculator to estimate your monthly electricity cost with your exact tonnage, usage hours, and city tariff.

AC Bill Calculator

We may earn a commission when you purchase through links on this site, at no extra cost to you. This helps us keep our guides free and independently researched.