Electricity calculators for Bangladesh
Beyond the main bill calculator on the home page, these seven tools dig into specific questions — a whole-house load schedule, a single appliance, a solar investment, an outage backup choice, or a prepaid conversion.
All calculators
Multiple load calculator
Add every appliance with quantity, hours and duty factor to get connected load, maximum demand, amps, breaker size and a slab-wise bill.
Use this to plan a full house, shop or factory load — and to see which line drives the bill.
Appliance running cost
Pick any appliance, set hours and days of use, and see the exact monthly and yearly cost at your tariff rate.
Use this to find which single appliance is driving your bill up.
Watt ↔ kWh ↔ taka converter
Convert wattage and usage hours into monthly units and cost, and stack multiple devices into one combined total.
Use this when you need quick unit maths for several devices at once.
Bill amount → units consumed
Enter a taka amount and work backwards through the LT-A slabs to estimate how many units it represents.
Use this when you only have a total taka figure and want the consumption behind it.
Solar savings & payback
Estimate monthly generation, bill savings, and payback period for a rooftop solar system under net metering.
Use this before committing money to a rooftop solar installation.
Grid vs generator vs IPS cost
Compare the real per-unit cost of grid power, diesel generator backup and IPS/battery backup during outages.
Use this to decide whether a generator or a battery backup is cheaper for your outage pattern.
Prepaid vs postpaid
Compare the 0.5% prepaid rebate against the 5% early-payment postpaid rebate over a full year.
Use this if you are deciding whether to convert your meter to prepaid.
Which calculator should I use?
A short guide to matching your question to the right tool.
- “Why is my bill so high this month?”
- Start with the appliance running cost calculator to isolate the biggest single consumer, then use the unit converter to add up everything else running in parallel.
- “I only have a taka figure from last year, not units.”
- The bill-to-units calculator reverses the slab maths so you can recover an approximate consumption figure for budgeting or comparison.
- “Is solar or a generator worth it for my situation?”
- Solar savings covers a long-term rooftop investment with net metering; the grid vs generator vs IPS tool is for short-term outage backup decisions instead.
- “Should I convert to a prepaid meter?”
- The prepaid vs postpaid calculator lays out the rebate difference and the practical trade-offs side by side.