Rent-to-Price Ratio Calculator

Solve a home's price from a target rent-to-price ratio, or the ratio from a price — net of property fees, agent commission and taxes.

Rent & costs

per month
per month
%
%
%

Estimated price

¥927,536

Total acquisition cost
¥960,000
Agent commission
¥23,188
Taxes & fees
¥9,275
Net monthly income
¥4,800 / mo
Gross ratio at this price
0.5391% / mo · 6.469% / yr
Price to rent
1 : 186
Payback period
16.7 years
¥

Net rent-to-price ratio

0.2319% / mo

Net ratio
0.2319% / mo · 2.783% / yr
Gross ratio
0.25% / mo · 3% / yr
Price to rent
1 : 400
Total acquisition cost
¥2,070,000
Agent commission
¥50,000
Taxes & fees
¥20,000
Net monthly income
¥4,800 / mo
Payback period
35.9 years

About the math

The net ratio is (rent − property fee) ÷ (price + agent commission + taxes) per month — what an investor actually earns after one-off purchase costs. The gross ratio is simply rent ÷ price, the classic definition behind the international 1:200–1:300 rule of thumb (≈0.33%–0.5% per month, 4%–6% per year); a market is often considered fairly priced inside that band.

Agent commission and taxes each accept a percentage of the price or a fixed amount. Rent accepts monthly, quarterly, semi-annual or annual payment and is normalized to a monthly figure. Everything runs locally in your browser — nothing is uploaded.