Round Pond Volume Calculator UK Calculate water capacity for circular ponds in cubic metres, litres, UK gallons, and pump sizing guidance in one click. Pond diameter Average water depth Measurement unit Metres (m)Centimetres (cm)Feet (ft) Pond profile adjustment Vertical sides…

Roulette Payout Calculator UK Estimate potential winnings, probability, and expected value for common UK roulette bets. Wheel type European Roulette (Single 0, 37 pockets)American Roulette (0 and 00, 38 pockets) Bet type Straight Up (35:1)Split (17:1)Street (11:1)Corner (8:1)Six Line (5:1)Dozen…

Rough Tax Calculator UK Estimate your annual and monthly take-home pay using 2024/25 UK tax assumptions. This tool gives a fast planning figure, not a formal HMRC calculation. Annual Gross Salary (£) Annual Bonus or Other Taxable Pay (£) Tax…

Roth IRA UK Calculator Estimate future tax free retirement value for a Roth style strategy and compare it with traditional and taxable outcomes. Current age Retirement age Current retirement balance Annual contribution Contribution increase per year (%) Expected annual return…

Root Protection Zone Calculator UK Estimate BS 5837 style Root Protection Area dimensions for planning, layout checks, and early arboricultural design decisions. Tree Stem Type Single stem at 1.5m (DBH)Multi stem (equal stems approximation) Stem Diameter (mm) Number of Stems…

Room Rent Calculator UK Estimate your true monthly housing cost, upfront move-in amount, and affordability ratio in seconds. Monthly room rent (£) UK region LondonSouth EastSouth WestEast MidlandsWest MidlandsNorth WestYorkshire and HumberNorth EastScotlandWalesNorthern Ireland Monthly net income (£) Are bills…

Room Heating Calculator UK Estimate required radiator or heater output, monthly energy use, and expected running cost for a UK room. Room length (m) Room width (m) Ceiling height (m) Room type Living roomBedroomKitchenBathroomHome office Insulation level Excellent (new build…

Room Heat Loss Calculator UK Estimate heat loss in watts, annual heating demand, and running cost using UK-focused assumptions. Room length (m) Room width (m) Ceiling height (m) External walls (count) 1 wall2 walls3 walls4 walls Total window area (m²)…

Room Capacity Calculator UK Estimate safe occupancy based on usable floor area, room layout, and exit width. Designed for UK-style planning workflows for events, offices, training spaces, and community halls. Room length (metres) Room width (metres) Obstructions/fixed furniture area (m²)…

Room Addition Cost Calculator UK Estimate your total project budget with regional pricing, specification level, statutory costs, and VAT in minutes. Room addition type Bedroom extensionKitchen-diner extensionBathroom extensionLiving room extensionHome office / studio Floor area (m²) UK region LondonSouth EastSouth…