From restaurant tip splitting and sales tax to BMI, mortgage payments, recipe scaling, and work timesheets. Instant calculations with zero signup, fully responsive, and country-adaptive.
Plan home improvements: square footage, room paint coverage, floor tiles, electricity running costs, and AC BTU sizing.
Calculate floor and wall surface area in square feet, square meters, square yards, and perimeter for remodeling.
Determine exactly how many gallons or liters of paint and primer you need for walls, subtracting windows and doors.
Calculate how many floor tiles, wood planks, or boxes you need, including a recommended 10% to 15% cutting waste margin.
Calculate daily, monthly, and yearly running costs of home appliances based on wattage and electricity tariff (kWh).
Find the ideal AC cooling capacity in BTU/hr and tonnage based on room dimensions, ceiling height, sunlight, and occupants.
Calculate how many rolls of wallpaper are needed for a room, accounting for pattern repeat drops and wall height.
Calculate the volume and water storage capacity of cylindrical or rectangular tanks in Liters, US Gallons, and cubic meters.
Estimate the weight of grass seed and fertilizer bags needed for new lawns or seasonal overseeding.
In everyday modern life, we make dozens of fast numerical decisions—from dividing the dinner check and estimating sales tax at checkout, to calculating compound interest on our monthly savings or adjusting recipe ingredients for family dinners.
Unlike generic calculators that only work in US dollars and US sales tax, Wishoo lets you set your home country (US, UK, India, Canada, Australia, Germany, France, Japan, UAE) to automatically adapt local tax rates (VAT, GST, Sales Tax) and currencies.
Calculations happen instantly in your browser as you type. Your personal numbers, financial data, and health stats are never uploaded or stored on any server.
Whether you are standing in a supermarket aisle on your phone or planning monthly budgets on your widescreen desktop, enjoy clean layouts, tap-friendly controls, and easy copy-to-clipboard results.