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ElectricBillTool India's Bill Calculator
West Bengal • Effective 2025-04-01

CESC Kolkata Electricity Bill Calculator

CESC Ltd. — Kolkata. Accurate slab-wise bill estimate with FAC, duty and fixed charges — for domestic, commercial and industrial consumers.

CESC Kolkata Domestic Slab Rates

Effective 2025-04-01. Energy charge structure.

Slab (units / month) Energy rate (₹/unit)
1 – 25 ₹5.09
26 – 60 ₹5.52
61 – 100 ₹6.04
101 – 150 ₹6.94
151 – 300 ₹8.32
301 – 600 ₹9.95
Above 600 ₹10.74
Fixed charges
₹35/kW/mo
FAC / FPPCA
₹0.60/unit
Electricity duty
0%
Telescopic
Yes

Commercial (LT) Rates

Slab (units / month) Energy rate (₹/unit)
1 – 60 ₹8.35
61 – 300 ₹9.60
Above 300 ₹10.85
Fixed charges
₹35/kW/mo
FAC / FPPCA
₹0.60/unit
Electricity duty
0%
Telescopic
Yes

Industrial (LT) Rates

Slab (units / month) Energy rate (₹/unit)
Above 0 ₹7.95
Fixed charges
₹35/kW/mo
FAC / FPPCA
₹0.60/unit
Electricity duty
0%
Telescopic
No

Sample CESC Kolkata domestic bills (2026)

Based on a 3 kW sanctioned-load domestic connection. Excludes subsidy. Use the calculator above for exact numbers with your own load and subsidy.

Bill for 100 units

₹742

avg ₹7.42/unit

Bill for 150 units

₹1,119

avg ₹7.46/unit

Bill for 200 units

₹1,565

avg ₹7.83/unit

Bill for 250 units

₹2,011

avg ₹8.04/unit

Bill for 300 units

₹2,457

avg ₹8.19/unit

Bill for 400 units

₹3,512

avg ₹8.78/unit

Bill for 500 units

₹4,567

avg ₹9.13/unit

Bill for 750 units

₹7,323

avg ₹9.76/unit

Bill for 1000 units

₹10,158

avg ₹10.16/unit

About CESC Kolkata

CESC Ltd. — Kolkata is the distribution licensee serving West Bengal — official site linked below. Consumers are billed monthly (bi-monthly in some categories) based on metered units, applicable slab rates, and fixed charges that scale with your sanctioned load.

This page stays synced with the latest tariff order from the state regulator. Every quarter we verify rates against the published order and update accordingly. Last verified: 2026-04-22.

Official website: www.cesc.co.in

CESC Kolkata — Common Questions

Answers to the most common electricity bill questions in India.

What are the latest CESC Kolkata tariff rates?
As per the tariff order effective 2025-04-01, CESC Kolkata domestic slabs range from ₹5.09/unit to ₹10.74/unit. Fixed charges: ₹35/kW/month. See the full table on this page.
How do I calculate my CESC Kolkata bill?
Enter your units (or previous/current meter readings), select domestic/commercial/industrial, and enter your sanctioned load. The tool applies CESC Kolkata's telescopic slab structure, adds fixed charges, FAC, electricity duty and any applicable subsidy — identical to the method on your bill.
Does CESC Kolkata use telescopic billing?
For domestic consumers, CESC Kolkata uses telescopic billing. This means only the units within each slab are charged at that slab's rate.
What is the electricity duty in West Bengal?
West Bengal levies an electricity duty of 0% on domestic bills, calculated on the energy + fixed + FAC base unless noted otherwise.