Tools
Free calculators and interactive tools from KDS London.
All Tools guides & reviews
Tools
Interior Designer Cost Calculator: Estimate Your London Design Fee
Free interior designer cost calculator: enter your rooms, floor area and budget and see your likely design fee across hourly, day, per-room, per square metre and percentage models, with the London uplift built in.
Tools
London Renovation Cost Calculator: Estimate Your Refurbishment Budget per m²
Free London renovation cost calculator: enter your floor area and finish level to estimate your refurbishment budget per square metre, split into build cost, design fee and contingency.
Tools
Paint Calculator: How Much Paint Do I Need for a Room?
Free paint calculator: enter your room dimensions, number of coats and doors and windows to work out how many litres and tins of paint you need, with an estimated cost.
Tools
Cost-Plus vs Retail: Interior Designer Procurement Markup Calculator
Compare buying furniture through your interior designer at trade price plus margin against buying it yourself at retail. See whether cost-plus procurement saves you money or adds to the bill.