1.5 Ton Inverter AC Unit Consumption per Hour in Pakistan

How many units does a 1.5 ton inverter AC consume per hour?

About 1 unit per hour on average. The rated input on the label of a 1.5 ton inverter AC is around 1,450 W, and that is what it draws in the first half hour while it pulls a hot room down. After that the inverter slows the compressor and the draw falls, often to a few hundred watts, and the hourly average over an evening lands near 1 kW.

That average is a planning value between the AC's lowest setting and full speed. A small, well-sealed room at a moderate set point will use less; a sunny room at a low set point on a hot afternoon will use more, close to the rated input for hours. Treat 8 units for 8 hours as a central estimate, not a promise.

How does this AC bill calculator for Pakistan work?

It multiplies the average kW by the hours a day and the days in the month to get the AC's units, then by your slab rate: 240 units × Rs 36.46 = Rs 8,750. That is the energy charge of the AC on its own. Your real bill adds the rest of the home, fixed charges per sanctioned kW, surcharges and taxes.

On the unprotected domestic tariff all units are charged at the rate of the slab the whole home reaches, so an AC that pushes your monthly total into a higher slab raises the rate on every unit, not just its own. Enter the rate from your own bill for the closest estimate, and use the full bill calculator linked below for the total.

How many units does a 1 ton inverter AC use per hour?

About 0.65 units per hour on average, with a rated input of 900 W. Running 10 hours a day it uses about 6.5 units a day and 195 units a month, about Rs 7,110 at the default rate. A 1 ton AC suits a small bedroom; in a large room it runs at full speed for longer and the saving over a 1.5 ton shrinks.

How many units does a 2 ton AC use?

A 2 ton inverter AC averages about 1.3 units per hour against a rated input of 1,900 W; at 6 hours a day that is 7.8 units a day and 234 units a month, about Rs 8,532. A 2 ton non-inverter uses considerably more; the table below lists both at the same hours.

How many units does a non-inverter AC use per hour?

A 1.5 ton non-inverter AC averages about 1.44 units per hour. Its compressor has one speed: it runs at the full 1,800 W until the room reaches the set temperature, switches off, then starts again. Over an hour it is on about 80% of the time, which gives the average used here.

For 8 hours a day that is 11.5 units a day and 346 units a month, about Rs 12,601, against Rs 8,750 for a 1.5 ton inverter at the same hours. The difference over a summer is usually what pays for the inverter model.

What is the real DC inverter AC consumption?

It depends on the room size, how much sun it gets, how well the doors and windows seal, the set temperature and the outdoor temperature. The presets here are averages from manufacturer input ratings and typical duty; your own AC can sit above or below them. The only exact figure is a measured one: a plug-in energy meter or the daily reading on a smart meter over a few days.

Each degree you raise the set point saves roughly 6% of the AC's units, so a moderate set point with the fan on does more for the bill than any difference between brands.

How do I use this as an AC power consumption calculator for any AC?

Choose Custom and enter the average kW. For a non-inverter AC, take the rated input in watts from the label, multiply by about 80% and divide by a thousand. For an inverter AC the presets use roughly two thirds of the rated input; a measured average from an energy meter is better. The calculator then gives units per day and month and the cost at your rate.