Science Calculators
Scientific calculators for physics — electrical circuits and motion.
Physics describes the world in precise, testable relationships — how voltage drives current, how speed relates to distance and time. This category turns those relationships into practical tools, useful for students checking homework, hobbyists working through a project, and anyone who needs a quick, correct answer to a quantitative science problem.
Ohm's Law Calculator
Solve for voltage, current, resistance, or power given any two of the four, using Ohm's Law (V = I × R) and the power equation (P = V × I), with step-by-step working shown.
Speed / Distance / Time Calculator
Solve for speed, distance, or time given the other two values, using speed = distance ÷ time, with step-by-step working, hour/minute/second time input, and a built-in speed unit converter.
Density Calculator
Solve for density, volume, or mass given the other two, using density = mass ÷ volume, with 9 volume units, 7 mass units, and 11 combined density units, plus step-by-step working.
Force Calculator
Solve for force, mass, or acceleration using Newton's second law (F = m × a), with 6 force units, 7 mass units, and 4 acceleration units — including standard gravity — plus step-by-step working.
Molecular Weight Calculator
Calculate the molar mass of any chemical formula — such as H2O, NaCl, or Ca(OH)2 — with element-symbol autocomplete as you type and a full periodic table of all 118 elements for reference.