Calculate sine, cosine, tangent, cotangent, secant, and cosecant for any angle in degrees or radians.
sin, cos, tan, cot, sec, and csc computed in one go
Toggle the input unit to match your problem
Quick access to 0°, 30°, 45°, 60°, 90°, and others
Choose how many digits to display (0–10)
Resolve forces into components when analysing beams and trusses
Calculate wave amplitudes, projectile angles, and pendulum periods
Find bearings, distances, and elevations from angle measurements
Verify trig identities and check exam answers quickly
Calculator
Basic calculator for mathematical operations
Average Calculator
Calculate the average of a set of numbers
Area Calculator
Calculate area and perimeter for 9 shapes — rectangle, circle, triangle, trapezoid, ellipse & more
GST Calculator
Calculate GST, add or remove tax from prices
Unit Converter
Convert between different units of measurement
Percentage Calculator
Calculate percentages and percentage changes