P propCALC.uk
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propcalc.uk by Propreneur Free UK calculators · no sign-up
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Deal strategies

Strategy R2R SA BTL HMO BRR Flip BMV Commercial Development

Financial & quick tools

NPV / IRR DSCR Multiples CoC / ROE LTV Breakeven SDLT Bridging Mortgage Yield BTL ROI Void Skip CGT Affordability Refurb Snagging

About this calculator

Free UK property calculator with show-your-working steps. No sign-up required to run numbers.

Related tools

Did you know?

Pair propcalc with market-data tools for comps; use these calculators to decide if the deal actually stacks after all costs.

UK context

Rent-to-Rent: lease a property and sub-let (SA or HMO). No mortgage exposure but requires landlord written consent, HMO licensing where applicable, and FCA-regulated guarantor agreements.

Calculator

Rent-to-rent

Full rent-to-rent model: gross margin, operating costs, setup capital, breakeven occupancy, and operator rules (10% rule, minimum margin).

Inputs

Income

Optional if you enter total rent below.

Leave blank to use rooms × rent per room.

Head lease

Operating costs (monthly)

Used when fixed fee is empty (0.10 = 10%).

Amortised HMO licence, gas safety, etc.

Setup capital (one-off)

Run calculator

Runs against the live API. Nothing is stored. Use Sign up to save results.

Sensitivity scenarios

Sign up to save deals

Create a free Propreneur account to save these numbers against a property.

Optional overrides - mortgage estimate for BTL / commercial

Uses offer price, monthly rent, and monthly expenses (x12 as annual opex) from the form above.

Show working

See every formula, your numbers plugged in step by step, and where each cost comes from. No other UK property calculator shows its maths like this.

Save this as a PDF deal pack

Run the calculator, then enter your email for a PDF summary (usually within a few minutes). Sign up to Propreneur for watermark-free packs and saved deals.

Calculate your deal first; the PDF uses your latest results.

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