Basic Online Calculator with 10-digit keypad and 4 functions to add, subtract, multiply and divide numbers. Includes basic handheld calculator functions for square, square root, percent, sign change, Pi and memory. Use the best online calculator for all your math needs on PC and smartphones. The free calculator allows you to quickly and accurately perform arithmetic, calculate percentages, raise to a power or extract a root. Use this basic calculator online for math with addition, subtraction, division and multiplication. The calculator includes functions for square root, percentage, pi, exponents, powers and rounding. Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with in-depth information. SolveCalc is a free calc solver and scientific calculator for students and teachers. Solve algebra, trigonometry, fractions, percentages and logarithms instantly with no download needed. Multiple calculator themes and math tools included. The original calculator was invented in the 17th century by a Frenchman called Blaise Pascal! He was just 18 years old, and wanted to help his father do his tax calculations. This free percentage calculator computes a number of values involving percentages, including the percentage difference between two given values. A beautiful, free online scientific calculator with advanced features for evaluating percentages, fractions, exponential functions, logarithms, trigonometry, statistics, and more. Standard Calculator Use this standard tape calculator for everyday arithmetic with a running calculation tape. Free online calculator with 51+ tools: scientific calculator, percentage calculator, BMI calculator, currency converter, unit converter, loan EMI, GPA calculator and more. No download, no signup required.