Calculators

Gravitational force calculator online free. Compute Newton’s law of universal gravitation F = G·m1·m2/r² for any two masses and distance, in your browser.

G force calculator online free. Convert acceleration in m/s² to g-force and g-force back to m/s², using 9.81 m/s² per g, in your browser.

Sigma calculator online free. Sum a sequence term by term — n, n squared, or a constant — over any start-to-end range, in your browser.

Standard form calculator online free. Convert ordinary numbers to standard form (a × 10^n) and back, in your browser.

Log calculator online free. Find log base 10, the natural log, and logs to any custom base, in your browser.

Exponent calculator online free. Raise any base to a whole, negative or fractional power, including square roots, in your browser.

Fibonacci retracement calculator online free. Compute 23.6%, 38.2%, 50%, 61.8% and 78.6% levels from any high and low price, in your browser.

Step by step multiplication calculator online free. See every partial product of a long multiplication, plus the final product, in your browser.

XOR calculator online free. Compute AND, OR, XOR and NOT on integers, with decimal and binary results, in your browser.

Mixed fraction calculator online free. Add, subtract, multiply and divide fractions, simplify results, and see them as mixed numbers, in your browser.

Geometry calculator online free. Find area and perimeter for rectangles, circles and triangles, with the formulas explained, in your browser.

Inflation calculator India online free. See what a sum will cost in future years and what today’s money will be worth, at any inflation rate you choose, in your browser.