Free Tools

Quick calculators for Thai dormitory owners. No signup needed.

Rent + Utility Bill Calculator

Calculate rent, water and electric for up to 3 rooms, then get a bill to send your tenant on LINE. Free — no Excel, no signup.

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Rent Adjustment Calculator

Estimate how much revenue you lose under CPB 2018 utility rules and how much to raise rent to break even.

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Dorm & Apartment Investment Calculator

Planning to build a dorm or apartment? Estimate payback period, ROI, bank-loan cash flow and break-even occupancy.

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🔒 For members

Real Utility Cost Check (Main Meter)

Compare actual property usage against what you bill tenants — see instantly whether you charge what you really pay the state. Included in the Pro plan and up.

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