How to Calculate Your Thai Electricity Bill

Residential electricity bills in Thailand use a progressive per-unit rate plus the FT (fuel tariff) charge.

Residential Tariff (progressive)

Usage	Rate (THB/kWh)
1 - 15	2.3488
16 - 25	2.9882
26 - 35	3.2405
36 - 100	3.6233
101 - 150	3.7171
151 - 400	4.2214
400+	4.4217

Calculation Example

200 kWh/month:

• First 15 kWh × 2.3488 = 35.23
• Next 10 × 2.9882 = 29.88
• Next 10 × 3.2405 = 32.41
• Next 65 × 3.6233 = 235.51
• Next 50 × 3.7171 = 185.86
• Last 50 × 4.2214 = 211.07
• Energy charge ≈ 729.96 THB + FT + service fee

Easy Savings

• Set AC to 26°C or higher
• Switch to LED bulbs
• Unplug unused appliances

Calculate Instantly

Use our Electricity Bill Calculator — enter monthly kWh, get an estimate instantly. Free.