Cake Size Guide

Sponge Cakes

Shape Size Portions
Square 6” (15cm) 12-15
Square 8” (20cm) 25-30
Square 10” (25cm) 40-45
Square 12” (30cm) 50-60
Round 6” (15cm) 12-15
Round 8” (20cm) 20-25
Round 10” (25cm) 35-40
Round 12” (30cm) 40-50

Rich Fruit

Shape Size Portions
Square 6” (15cm) 20 – 25
Square 8” (20cm) 40-45
Square 10” (25cm) 80-90
Square 12” (30cm) 100-120
Round 6” (15cm) 20-25
Round 8” (20cm) 35-40
Round 10” (25cm) 60-75
Round 12” (30cm) 85-100
  • For fruit cake portion sizes are generally 1” x2.5” to be served at a wedding, but you may wish to double this for other occasions.
  • Sponge Cake portions are generally served double the size of fruit cake.
  • Square cakes provide more portions per cake than round.
  • If you are having more than one tier then add together the portions for each tier.
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