Free Indian Utility Calculators
Calculate Electricity, AC & Solar Bills
Slab-by-slab bill calculators, buying guides, and energy audits for every Indian household — all free, all accurate, all updated for 2026.
Your Complete Energy Toolkit
Six hubs. Every Indian utility need. All free, all accurate, all updated for 2026.
Air Conditioning Hub
Tonnage, star ratings, inverter ROI, 50+ buying guides.
Electricity Hub
24 state DISCOMs. Slab-by-slab precision.
Solar Hub
PM Surya Ghar, ROI, net metering.
Appliances
Fans, geysers, washing machines, fridges.
AC Reviews
Expert-tested, real-world cost analysis.
AC Spares & Parts
Stabilizers, remotes, coil cleaners.
Set AC at 24°C not 18°C — saves 20% electricity with same comfort.
TNEB 100 free units reset every bi-monthly bill, not monthly.
A 5-star 1.5T AC uses 1.2 units/hr vs 2.1 for 3-star — ₹14,400 saved yearly.
BESCOM Slab 5 (₹8.16/unit) kicks in at 401 units — one AC away for many.
Solar payback in India: 4–6 years after PM Surya Ghar subsidy of ₹78,000.
MSEDCL ToD off-peak (10pm–6am): 15% rebate — run geyser at night.
SK Kutubuddin
Verified energy auditors
Solar vs Grid
Is Solar Worth It For You?
Enter your DISCOM + units — see your 25-year ROI side by side.
Compare Grid vs Solar →Set AC at 24°C not 18°C — saves 20% electricity with same comfort.
TNEB 100 free units reset every bi-monthly bill, not monthly.
A 5-star 1.5T AC uses 1.2 units/hr vs 2.1 for 3-star — ₹14,400 saved yearly.
BESCOM Slab 5 (₹8.16/unit) kicks in at 401 units — one AC away for many.
Solar payback in India: 4–6 years after PM Surya Ghar subsidy of ₹78,000.
MSEDCL ToD off-peak (10pm–6am): 15% rebate — run geyser at night.
SK Kutubuddin
Verified energy auditors
Solar vs Grid
Is Solar Worth It For You?
Enter your DISCOM + units — see your 25-year ROI side by side.
Compare Grid vs Solar →State DISCOM & Utility Calculators
Select your electricity board for an accurate slab-by-slab bill calculation, or explore our full suite of free utility tools.
State Electricity Board Calculators
AC, Appliance & Other Tools
Electricity Bill Calculator (All DISCOMs)
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AC Bill Calculator
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AC Power Consumption
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Ceiling Fan Electricity Cost
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Solar ROI Calculator
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Appliance Cost Calculator
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Inverter Battery Backup
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Petrol & Diesel Cost Per KM
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Gratuity Calculator India
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Tax Regime Calculator
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How to Read Electricity Bill
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EV Charging Cost Calculator
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How We Audit Your Data
10M+ bills calculated. 98% accuracy verified. Here's the 3-step process that makes Desi Utility India's most trusted utility platform.
Official Tariff Order
We source directly from each DISCOM's official tariff order filed with state electricity regulatory commissions (SERC/CERC). No aggregator intermediaries.
Technical Verification
SK Kutubuddin cross-validates slabs against physical bills submitted by 500+ community members across 24 DISCOMs. Fixed charges, duties, and subsidy logic are triple-checked.
Your Personalized Result
Our calculator applies progressive slab math to your exact reading — the same calculation a DISCOM meter reader uses. Accurate to within 2% of your physical bill.
10M+
Bills Calculated
98%
Accuracy Rate
24
DISCOMs Covered
2026
Tariff Updated