Calcul Volume is a free suite of online volume calculators — cube, cylinder, sphere, cone, concrete, pool, pipe and more — in French and 18 other languages, for students, teachers, builders and DIY users. Instant results with formulas shown.
AP Stats Calculator is a free suite of online calculators built for AP Statistics students and teachers: binomial distribution, normal distribution, z-score, p-value, t-test, chi-square, confidence intervals, regression and an AP score calculator — each with step-by-step explanations, formulas and worked examples. No sign-up needed.