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Calculators

Quick estimate of buying property under construction on Koh Samui — instalment plan, rental yield and currency converter.

— Payment plan

Installment calculator

Off-plan in Thailand usually splits payments: a down payment now, scheduled instalments while construction progresses, and a final payment on handover.

Down payment
$60,000
30% now
Monthly during build
$5,556
18 × $5,556 (50%)
On handover
$40,000
20% on handover

Indicative only. Actual schedule is set per contract — typically tied to construction milestones, not equal monthly amounts.

— Rental yield

Rental ROI calculator

Estimate net annual yield from short-term rental. Defaults are typical Koh Samui conditions: $150/night, 65% occupancy, 20% management cut.

Gross income
$35,588
237 nights/yr
Net income
$25,623
after fees
Net yield
12.8%
per year
Payback
7.8 yr
to break even

Estimate only. Actual yield depends on season, marketing, asset class. We can connect you with our management partners to underwrite a specific unit.

— Convert

Currency converter

THB
฿7,100,000
RUB
₽18,400,000
USD
$200,000

1 USD = 35.50 THB · 1 USD = 92.00 RUB · rates updated 2026-05-09

— Exact numbers

Want exact numbers for a specific unit?

Drop us a line — we send a per-unit calculation with discounts and the real contract payment schedule.

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Two boutique developments in Maenam, Koh Samui — by B2 Development.

+66931252166

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