Acreage Calculator: Acres, Square Feet and Land Dimensions
Convert acres, square feet, hectares and other land units, or calculate acreage from rectangle, triangle, circle and trapezoid dimensions.
APR Calculator: Annual Percentage Rate, Fees and Payment
Calculate loan APR from a stated rate and fees or from a known payment, with multiple payment frequencies, financed costs and optional balloon payments.
Countertop Square Footage Calculator: Sections, Slabs and Cost
Calculate countertop square footage by section, then estimate backsplash, cutouts, waste, slabs, edges and material cost.
Partial Fraction Calculator: Decomposition with Steps
Decompose rational functions into partial fractions with polynomial division, repeated linear factors, quadratic factors, coefficient steps and numerical verification.
Slugging Percentage Calculator: SLG, Total Bases and OPS
Calculate baseball or softball slugging percentage, total bases, AVG, ISO, optional OBP and OPS, combined stat lines, and the total bases needed for a target SLG.