Electricity calculators for Bangladesh: pick the right one
Work out your bill, find the appliance that costs the most, compare solar and backup power, or see what a prepaid meter saves. Every tool uses the official BERC tariff and runs in your browser.
All calculators
Start with the main bill calculator. The others answer more specific questions.
Main bill calculator
All 23 BERC categories, meter rent by company and phase, prepaid rebate and extra charges, with a line-by-line bill.
Start here if you want to know what your next bill will be.Open calculator 02Multiple 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.Open calculator 03Appliance running cost
Pick an appliance, set hours and days of use, and see the monthly and yearly cost at your tariff rate.
Use this to find which single appliance is driving your bill up.Open calculator 04Watt, kWh and taka converter
Convert wattage and usage hours into monthly units and cost, and stack several devices into one total.
Use this for quick unit maths on several devices at once.Open calculator 05Bill amount to units
Enter a taka amount and work backwards through the LT-A slabs to estimate the units it covers.
Use this when you only have a taka figure and want the consumption behind it.Open calculator 06Solar savings and payback
Estimate monthly generation, bill savings and payback period for a rooftop solar system under net metering.
Use this before you commit money to a rooftop solar system.Open calculator 07Grid, generator and IPS cost
Compare the per-unit cost of grid power, diesel generator backup and IPS or battery backup during outages.
Use this to decide if a generator or a battery backup is cheaper for your outage pattern.Open calculator 08Prepaid vs postpaid
See what the 0.5% prepaid rebate is worth on your bill, and how each recharge is split into VAT, demand charge, rent and energy.
Use this if you are deciding on a prepaid meter, or wonder why a recharge gave few units.Open calculatorWhich calculator should I use?
Match your question to the right tool.
Why is my bill so high this month?
Start with the appliance running cost calculator to find the biggest single cost. Then use the unit converter or multiple load calculator to add up everything else running at the same time.
I only have a taka figure, not units.
The bill-to-units calculator works backwards through the home slabs and estimates the units behind that amount. It ignores meter rent and other charges, so treat it as an estimate.
Is solar or a generator worth it?
Solar savings is for a long-term rooftop system with net metering. The grid, generator and IPS tool compares short-term backup power during outages.
Should I move to a prepaid meter?
Use the prepaid vs postpaid calculator. The saving is the 0.5% rebate, about 13 taka a month on a bill of 2,660 taka. The tool also shows where each recharge goes.
Will my next bill go over 400 units?
Use the main calculator and try different unit counts. The rate jumps from 9.62 to 15.01 taka per unit after 400 units, so it pays to stay under that line.
What size load do I need for a new connection?
The multiple load calculator gives connected load, maximum demand, line current and a suggested breaker. A single-phase LT connection is limited to 7.5 kW.
How these calculators work
Every tool starts from the same source: BERC's retail tariff order of 3 June 2026 (Order 2026/22), with the 4 June 2026 change that kept the first two home slabs at 4.63 and 5.26 taka. Home bills are priced slab by slab, then the demand charge (42 taka per kW) and 5% VAT are added.
The main calculator also adds meter rent. It uses 40 taka for a single-phase meter and 250 taka for a three-phase meter when the company supplied the meter. You can type your own figure, and you can add old dues or a late fee from your bill.
Other tools use extra inputs that only you know, such as hours of use, appliance watts or generator fuel price. Check those against your own situation. All results are estimates, and your printed bill is final.
Calculator questions
Which electricity calculator is the most accurate for my bill?
The main calculator on the home page. It prices your units through the June 2026 BERC slabs, adds the demand charge, meter rent by company and phase, and VAT, and shows each line. Check the total against your printed bill.
Do the calculators use the current 2026 rates?
Yes. They use BERC Order 2026/22 of 3 June 2026 with the 4 June 2026 change: lifeline stays at 4.63 taka and the 0 to 75 slab at 5.26 taka. Slabs from 76 units up are 8.50, 9.10, 9.62, 15.01 and 17.35 taka per unit.
Why is my printed bill different from the calculator?
Common reasons are meter rent, old dues, a late payment charge, a meter reading date that is a few days off, or a different sanctioned load. The main calculator lets you type meter rent and extra charges from your bill.
Do the calculators store my data?
No. All calculations run in your browser on your device. Nothing you type is sent to us.
Can I use these calculators for a shop or factory?
Yes for the main calculator, which covers LT, MT, HT and EHT categories with peak and off-peak rates. Bill-to-units and multiple load use the home (LT-A) slabs. The appliance, unit converter and solar tools use a per-unit rate you can edit, so enter the rate for your category from the tariff page.
How should I use the calculators together?
First find your units with the main calculator. If the bill is high, use the appliance cost or multiple load calculator to see which devices cause it. Then test changes, such as a solar system or a prepaid meter.
This is an independent site, not BERC or an electricity company. See our disclaimer. Last checked 7 October 2026.