Free, accurate online tools for composite materials engineers — fiber volume fraction, density by rule of mixtures, fiber mass fraction, porosity, laminate design, and more. Updated weekly with new calculators.
Convert fiber weight fraction (Wf) to volume fraction (Vf) using fiber and matrix densities. Essential for prepreg design, quality control, and performance prediction in composites.
Open Calculator →Convert fiber volume fraction (Vf) to mass/weight fraction (Wf) for material mixing, production weighing, burn-off test validation, and manufacturing quality control.
Open Calculator →Calculate theoretical composite density using the rule of mixtures. Critical for weight estimation, structural analysis, material selection in aerospace, automotive, and marine applications.
Open Calculator →