Free tool
Utility Bill Calculator
Calculate water and electric bills for up to 3 rooms. Free — no signup needed.
Billing rates
MEA standard ~4.4
PWA standard ~18
e.g. common / trash fee
Room 1
Electric (units)
Water (m³)
Did you know?
Per CPB Notice 2018, landlords with 5+ units must charge water/electric at the actual provider rate — no markup allowed. Penalty up to ฿100,000.
Read the full legal guide →