Geometry, statistics, physics, chemistry and practical formula calculators.
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Calculate area for a rectangle, triangle, circle or trapezoid from the dimensions you enter.
Calculate volume for a rectangular prism, cylinder, sphere or cone.
Calculate slope from two coordinate points.
Solve quadratic equations and report real or complex roots.
Calculate mean, variance and standard deviation for a sample or population.
Calculate complements, independent intersections and unions from two probabilities.
Calculate density from mass and volume, and also report specific volume.
Calculate kinetic energy from an object’s mass and velocity.
Solve voltage, current, resistance and power from any two known electrical values.
Calculate solution molarity from moles of solute and solution volume.
Length, weight, volume, area, temperature and other quick everyday unit conversions. Use these tools for quick estimates, comparisons and everyday planning.