Buttercream Calculator Cake measurement preference: Inches (Imperial) Centimetres (Metric) Buttercream thickness preference: Outside thickness Filling thickness +Add tier # Height * Layers ** Shape Size *** Action * If only filling cake tier, set Height to '0', and set Layers to number of filling layers. ** If only covering cake tier, set Layers to '1'. ** Size - For round cakes, insert diameter value. For Square/rectangle cakes, insert length & width values. Calculate