Every Calculator.
One Place.

Estimate income tax for US, UK, Canada, India, Australia, Germany, South Africa, Nigeria, and Kenya.

Calculate monthly mortgage payments, total interest, and amortization schedule for any loan amount, rate, and term.

Calculate repayment schedules for personal, auto, or student loans. Compare different terms and interest rates side by side.

Compare rent vs buy for homes, cars, warehouses, shops, and land. Find your break-even point with year-by-year analysis.

Calculate compound interest with regular contributions. See year-by-year growth chart and future value.

Add or remove VAT/GST instantly. 40+ country presets including UK, EU, India, South Africa, Nigeria, Kenya.

Convert hourly to salary and back. Full breakdown with overtime at 1.5× or 2×. See all pay periods.

Calculate optimal trade size based on account balance, risk tolerance, and stop loss. Includes risk-reward ratio.

Find your liquidation price for leveraged positions. Supports long/short with isolated and cross margin.

Calculate BMI with visual gauge, healthy weight range, BMI Prime, and waist-to-height ratio. WHO and Asian standards.

Calculate your exact age in years, months, days, hours, and minutes. Includes zodiac sign and birthday countdown.

Estimate conception from due date, LMP, or ultrasound. Includes pregnancy milestone timeline and trimester tracking.

Find days between two dates, or add/subtract days. Shows weekdays, weekends, weeks, and full duration breakdown.

Semester GPA, cumulative GPA, and target GPA calculator. Supports 4.0 and 5.0 scales with visual gauge and grade reference.

Full-featured calculator with standard and scientific modes. Trig, logs, exponents, memory, keyboard support.

Six percentage modes: X% of Y, percentage change, add/subtract %, reverse percentage, and more.

Estimate concrete, bricks, paint, flooring, roofing, and aggregate. Supports slabs, columns, stairs, and more.

Convert between square meters, square feet, acres, hectares, and more. Instant bi-directional conversion.

Convert between kilograms, pounds, ounces, grams, stones, and tons. Supports metric and imperial systems.

Convert between meters, feet, inches, miles, kilometers, yards, and centimeters instantly.

Convert between liters, gallons, cups, milliliters, fluid ounces, and tablespoons.

Convert between Celsius, Fahrenheit, and Kelvin. Includes common reference points and formulas.

Convert between km/h, mph, knots, meters per second, and feet per second.