Math Tools

15 free Math tools — all run in your browser, no login needed.

• Percentage Calculator — 3-in-1 percentage calculator
• Unit Converter — Convert length, weight, temperature & more
• Scientific Calculator — Scientific calculator with trig, log and power functions
• Date Calculator — Add or subtract days from dates and find date differences
• Random Number Generator — Generate random numbers in any range with options
• Fraction Calculator — Add, subtract, multiply and divide fractions
• Statistics Calculator — Calculate mean, median, mode, standard deviation and more
• Quadratic Solver — Solve ax² + bx + c = 0 with step-by-step solution
• LCM & HCF Calculator — Find LCM and HCF/GCD of two or more numbers
• Prime Number Checker — Check if a number is prime and find its factors
• Area Calculator — Calculate area and perimeter of circles, rectangles, triangles
• Number Base Converter — Convert between binary, octal, decimal and hexadecimal
• Roman Numeral Converter — Convert numbers to and from Roman numerals
• Periodic Table — Interactive periodic table with all 118 elements — click for full properties, filter by category, search by name or symbol
• Conversion Tables — Instant unit conversions — Length, Weight, Temperature, Volume, Speed, Area, Data, Pressure, Energy. All at once.