Air conditioning is the single biggest electricity cost in Pakistani summers — a 1.5-ton inverter AC running 8 hours/day adds Rs. 8,000–15,000 to a monthly bill depending on the tariff slab. This calculator shows the exact monthly cost of your AC unit based on its capacity, daily usage, and your effective electricity rate.
How to use: Select your AC capacity from the dropdown, enter daily hours of use, and enter your electricity rate per unit. Use the effective rate from your bill (not just the slab rate) for accuracy — use our unit cost calculator if you don't know your effective rate.
Calculate how much your air conditioner costs to run each month based on its capacity and usage.
Inverter ACs consume 30-50% less than non-inverter at same capacity. Actual consumption depends on room insulation, temperature setting, and outdoor temperature.
What the Result Tells You
The monthly AC cost shows what this single appliance adds to your electricity bill. For households with multiple ACs, multiply by the number of units running simultaneously. This figure is also useful for calculating solar ROI — if your ACs account for Rs. 20,000/month of your bill, a solar system that offsets peak daytime AC usage pays back significantly faster than one used only for lighting and fans.
Frequently Asked Questions
For daily summer use of 6+ hours, yes — an inverter AC uses 30–50% less electricity than a fixed-speed AC of the same capacity. At Pakistani electricity rates, the electricity savings over a summer typically cover the price premium within 1–2 seasons. For occasional use (under 3 hours/day), the payback period is longer.
A 1-ton AC is sufficient for a room up to about 130 sq ft with normal insulation. A 1.5-ton AC handles rooms up to 180–200 sq ft. For larger rooms or rooms with poor insulation and west-facing walls (which receive intense afternoon sun in Pakistan), go up one size.
Each degree increase in set temperature saves approximately 6–8% in electricity consumption. Setting at 26°C instead of 22°C saves roughly 24–32% of AC electricity cost — a meaningful saving over a Pakistani summer without significant comfort loss for most people.