Math Calculators · Singapore

Area, perimeter, diagonals and radii of a regular octagon from its side.

Convert a part and total into ppm, percent, ppb and a ratio.

Find density from mass and volume (and rearrange the formula).

Work out percentages, percentage increase, decrease and difference.

Slope, equation, intercept, distance, angle and midpoint from two points.

Find the score you need on the final to hit your target grade.

Add, subtract, multiply and divide fractions with simplified, mixed and decimal answers.

Mean, median, mode, range and standard deviation of any list of numbers.

Lowest common multiple and highest common factor of two or more numbers.

Solve ax² + bx + c = 0 with roots, discriminant and vertex.

Trigonometry, logarithms, powers, roots and factorials, in degrees or radians.