Skip to calculator or content

MEA and PEA household tariff

Thailand Electricity Bill Calculator 2026 | MEA & PEA

Enter monthly kWh and choose MEA or PEA. The calculator applies the selected household or small-business tariff, editable Ft charge, service charge and 7% VAT, then explains every bill component.

Start calculating

Your figures

Calculate your estimate

Adjust any field. The result updates immediately and stays on this device unless you choose to share it.

Typical monthly use
Bill provider
Live estimate

Estimated electricity bill

—

Enter your figures to see the estimate.

Energy charge
—
Ft charge
—
Service charge and VAT
—
Average cost per kWh
—
Applied tariff
—
Bill anatomyMEA / PEA tariff breakdown
EnergyFtServiceVAT
Applied tierkWhRateCharge

Estimates use the values entered and the methodology documented below. Check current provider or authority information before acting.

Method and limits

What this estimate means

Tiered energy charge + kWh × Ft + service charge, followed by 7% VAT.

Included
Residential and small-business normal tier rates, entered Ft, standard service charge and VAT.
Not included
TOU tariffs, demand charges, deposits, arrears, discounts, solar credits, meter multipliers and billing adjustments.

Before you decide

Use the result carefully

  1. 01

    Choose MEA only for Bangkok, Nonthaburi or Samut Prakan; most other provinces use PEA.

  2. 02

    Use the kWh reading and tariff code printed on the bill.

  3. 03

    Match the Ft value to the billing period before comparing totals.

Primary references

Official and authoritative sources

Formula assumptions are reviewed against these sources. A linked source may be available primarily in Thai.

Questions

Common questions

What is Ft?

Ft is a fuel-adjustment component stated per kWh. It changes by billing period, so the calculator leaves it editable.

Should I select MEA or PEA?

Select MEA for bills issued in Bangkok, Nonthaburi and Samut Prakan. Select PEA for most other provinces. Always confirm the provider name printed on the bill.

How much does 1 kWh cost in Thailand?

There is no single price for every unit because residential energy charges use tiers. The calculator divides the complete estimate by total kWh to show the effective average for your scenario.

Why can the result differ from my bill?

Your tariff code, Ft period, meter dates, discounts, arrears or adjustments may differ from the assumptions entered.