How much does a 1.5 ton inverter AC cost to run per month in Pakistan?

A 1.5 ton inverter AC running 8 hours per day at 24°C thermostat consumes roughly 300 kWh per month under typical Pakistani load conditions. At LESCO unprotected slab Q2 2026 rates with full taxes and surcharges, that translates to approximately Rs 15,000-18,000 per month depending on FPA/QTR for the month and filer status. Same AC at 12 hours per day rises to roughly Rs 22,000-26,000 per month. Use this calculator with your specific hours and DISCO to get the exact figure.

Is an inverter AC really cheaper to run than a non-inverter AC?

Yes, significantly. At the same tonnage and same usage, an inverter AC consumes roughly 30-40% less electricity than a non-inverter AC because the compressor modulates speed (variable frequency drive) instead of cycling ON-OFF at full power. A 1.5 ton inverter AC at 8 hours per day costs around Rs 15,000-18,000 per month in Pakistan; the same usage on a 1.5 ton non-inverter AC costs Rs 22,000-26,000 per month. The savings of Rs 7,000-10,000 per month covers the higher purchase price (typically Rs 30,000-60,000 more for inverter) within 4-9 months of summer use.

How much electricity does an AC use per hour in Pakistan?

A 1.5 ton inverter AC uses roughly 1.25 kWh per hour on average at 24°C in real Pakistani usage (rated wattage 1,800 W × ~70% inverter load factor = 1,260 watts average draw). At LESCO unprotected slab rates, that costs roughly Rs 60-75 per hour all-in. A 1.5 ton non-inverter AC uses roughly 2.3 kWh per hour (2,700 W × 85% duty) costing Rs 90-110 per hour. Per-hour cost rises in higher tariff slabs (after 300+ units/month).

Does raising the thermostat actually save money on the AC bill?

Yes, this is one of the highest-leverage actions you can take. Per Department of Energy and NEECA Pakistan guidance, every degree Celsius you raise the thermostat above the reference 22°C saves roughly 6% on AC electricity consumption (range 5-8%). Set at 26°C instead of 22°C, you save approximately 24% on the bill. For a 1.5 ton inverter AC running 8 hours per day, that's roughly Rs 3,500-4,500 per month of savings just from the thermostat. Combined with closing curtains during peak afternoon sun, the savings can reach 35-40%.

Which DISCO has the cheapest electricity for ACs?

All 11 DISCOs (LESCO, K-Electric, IESCO, MEPCO, GEPCO, FESCO, HESCO, SEPCO, PESCO, QESCO, TESCO) use a NEPRA-set national domestic slab tariff with very similar per-unit rates (within ±1 rupee). Real differences come from FPA (Fuel Price Adjustment) and QTR (Quarterly Tariff Adjustment) which differ slightly DISCO by DISCO each month. K-Electric typically has higher FPA than Punjab DISCOs in recent quarters. Use this calculator with your actual FPA/QTR for the month to get the precise figure for your DISCO.

How does the protected slab affect my AC bill?

If you have consistently used under 200 units per month for the previous 6 months, you qualify for the protected domestic tariff which is significantly cheaper per unit (Rs 7-22/unit vs Rs 23-48/unit on unprotected). However, AC usage typically pushes monthly consumption above 300-500 units, automatically dropping you out of the protected tier. Most Pakistani AC users are on unprotected slab. The calculator defaults to unprotected accordingly.

Is a 1 ton AC enough for a Pakistani bedroom?

A 1 ton AC (12,000 BTU/hr) is rated for roughly 130-150 square feet of cooling under standard 22°C target. In Pakistani summer reality (outdoor 40-48°C, target 24-26°C), the effective coverage drops to roughly 100-120 square feet. For a standard 12'×14' bedroom (168 sq ft), a 1.5 ton inverter AC is more comfortable and actually MORE efficient because it does not run at 100% all day to maintain temperature. Oversizing by half a ton is the sweet spot in Pakistani conditions.

Why is my actual AC bill different from this calculator's estimate?

Three main reasons: (1) Real-world wattage varies by manufacturer, age of the AC, and refrigerant charge level; (2) FPA and QTR adjustments change monthly; (3) The calculator isolates AC consumption, but your DISCO bills all consumption (AC + fans + lighting + appliances) on a single progressive slab, so the AC's marginal cost rises if other usage already pushed you into a higher slab. For full bill including all loads, use our Electricity Bill Calculator Pakistan with your meter reading.

AC Bill Calculator Pakistan 2026: Inverter vs Non Inverter

Free Pakistan AC electricity bill calculator. 11 DISCOs, 2026 tariff slabs, inverter vs non inverter comparison, per hour cost, monthly PKR estimate.

Last reviewed: 5 July 2026Results are estimates. Verify rates from the linked official sources before acting on the number.

About the AC Bill Calculator Pakistan 2026: Inverter vs Non Inverter

Free Pakistan AC electricity bill calculator with 11 DISCOs, 2026 tariff slabs, inverter vs non inverter comparison, per hour cost and monthly PKR estimate. Estimates your exact AC monthly electricity bill in PKR for Pakistani summers. Pick your AC tonnage (0.75, 1, 1.5, or 2 ton) and type (inverter or non-inverter), set hours per day, choose thermostat temperature, and pick your DISCO (LESCO, K-Electric, IESCO, MEPCO, GEPCO, FESCO, HESCO, SEPCO, PESCO, QESCO, TESCO) plus protected or unprotected slab and current FPA/QTR. The tool computes your AC's daily and monthly kWh consumption using realistic Pakistani load factors (inverter ACs run at roughly 70% of rated wattage on average, non-inverter ACs run at roughly 85% duty), applies the per-degree-Celsius savings rule (~6% per degree raised above 22°C), then runs the resulting units through your DISCO's progressive slab tariff plus Electricity Duty (1.5%), GST (18%), TV fee, NJ surcharge and Section 235 income tax for non-filers. Shows daily cost, per-hour cost, and a side-by-side inverter vs non-inverter savings comparison at the same tonnage. Built for Pakistani households dealing with 45°C+ summers where AC dominates the electricity bill, and for buyers comparing inverter vs non-inverter purchase decisions where lifetime running cost matters more than the Rs 30,000-60,000 upfront price difference. Pairs with our Electricity Bill Calculator Pakistan and Solar System Size Calculator.

AC Running Cost Calculator Pakistan

AC type and size

Pick the closest match to your AC. Wattage based on 2026 Pakistani market models.

DISCO / utility

Lahore, Kasur, Sheikhupura, Nankana Sahib, Okara

Hours per day

Thermostat (°C)

~6% savings per °C above 22°C

Tariff slab

FPA + QTR (Rs/unit)

From your last bill, optional

Tax filer status

Estimated monthly AC bill (1.5 Ton Inverter AC)

Rs 9,208

Daily cost

Rs 307

Per hour

Rs 38

Daily kWh

8.9 kWh

Monthly kWh

266 kWh

Inverter vs Non-Inverter at same usage

Selected: 1.5 Ton Inverter AC

Rs 9,208

266 kWh / month

Alternative: 1.5 Ton Non-Inverter AC

Rs 19,580

485 kWh / month

You save Rs 10,372/month by choosing 1.5 Ton Inverter AC over 1.5 Ton Non-Inverter AC.

How this is calculated

AC monthly kWh = rated wattage × load factor × hours × 30. Inverter ACs run at roughly 70% of rated wattage on average due to variable compressor speed; non-inverter ACs cycle ON-OFF at roughly 85% duty. Temperature setting above 22°C reduces consumption by roughly 6% per degree (capped at 45%). The bill is computed on the resulting monthly units using LESCO progressive slab tariff Q2 2026, plus Electricity Duty (1.5%), GST (18%), TV fee (Rs 35), NJ surcharge and FPA/QTR if you provided them, and Section 235 income tax for non-filers above applicable thresholds.

Tariff data effective Q2 2026. This is a marginal estimate, assumes AC is the primary load contributing to slab consumption. For your full household bill including non-AC consumption, use our Electricity Bill Calculator.

Pick your AC size and type from the dropdown. 1.5 ton inverter is the most common in Pakistani homes.
Enter hours per day (Pakistani summer average is 8-12 hours; peak heatwave can be 16+).
Set your thermostat temperature. Defaults to 24°C. Each degree above 22°C saves roughly 6% on the bill.
Pick your DISCO. LESCO, K-Electric, IESCO, MEPCO, GEPCO, FESCO, HESCO, SEPCO, PESCO, QESCO and TESCO are all supported with their Q2 2026 slab tariffs.
Choose protected (if you have stayed under 200 units/month for 6+ months) or unprotected slab. Enter the current month's FPA / QTR (read off your last bill) and your filer status. The tool returns the monthly AC bill, daily cost, per-hour cost, and side-by-side savings vs the inverter or non-inverter alternative at the same tonnage.

Frequently Asked Questions

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AC Bill Calculator Pakistan 2026: Inverter vs Non Inverter

About the AC Bill Calculator Pakistan 2026: Inverter vs Non Inverter

How to use the AC Bill Calculator Pakistan 2026: Inverter vs Non Inverter

Frequently Asked Questions

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