Electricity Bill Estimator (Pakistan)

What is the electricity bill estimator?

Electricity in Pakistan is billed through increasing-block tariffs: the first units you consume each month are cheap, and each higher consumption slab costs more per unit. This estimator reproduces that logic — enter the units from your meter or an old bill and it breaks the cost down slab by slab, showing exactly which units cost what. Because tariffs differ between DISCOs (LESCO, K-Electric, IESCO, and others), between protected and non-protected consumers, and change with NEPRA determinations, every slab range and rate is editable so you can match your own bill.

How to use this tool

1. Enter the units (kWh) consumed — find them on your last bill or read your meter.
2. Check the prefilled indicative residential slabs; edit any range or per-unit rate to match your DISCO's current tariff.
3. Press Estimate bill to see the estimated energy charges and the full slab-wise breakdown table.
4. Use Reset slabs to restore the indicative defaults after experimenting.

Key features

• True increasing-block math: each unit is charged at the rate of the slab it falls in, never at the highest slab's rate.
• Editable slab ranges and per-unit rates, so the tool adapts to any DISCO or tariff revision.
• Slab-wise breakdown table showing units used, rate, and amount per slab, with a total row.
• Honest scope: clearly states that taxes, fuel adjustments, and fixed charges are excluded.
• Prominent warning that rates are indicative and vary by DISCO and change frequently.

Common use cases

• Budgeting: predicting next month's bill before it arrives.
• Bill verification: checking whether a surprisingly high bill matches your metered units.
• Appliance decisions: estimating what an air conditioner or heater adds at your marginal slab rate.
• Solar sizing: knowing your top-slab cost per unit helps judge solar payback.
• Landlord-tenant: fairly splitting a shared meter's bill by each party's units.

Practical tips

• Your marginal rate — the rate of your highest slab — is what an extra unit of consumption really costs, and it is much higher than your average rate.
• Staying just under a slab boundary (for example 300 units) can save disproportionately; heavy appliances used a few days less can drop you a whole slab.
• Protected consumers (low usage over six months) get far lower rates — check your bill's consumer category before editing slabs.
• Real bills add GST, income tax, fuel price adjustment, and quarterly tariff adjustments, often 30–50% above energy charges.
• Tariffs are revised often; re-check your DISCO's latest schedule each quarter and update the table.