1. Your guest numbers
Cake is usually served to everyone at the party, plus any latecomers who'll have a slice too.
2. Slice size
This changes how many portions each tier gives you.
3. Cake style & budget
This sets the rough cost per portion — your baker's actual quote will depend on their pricing.
Your cake, worked out
Updates live as you fill in the form above.
Keep your budget on track
Cake is one of the easiest costs to underestimate. Once you've got a rough figure here, add it into your overall party budget so there are no surprises.
Add this to your Party Budget →Quick guide
How to use the cake portion calculator
- Enter Guests attending and any Extra latecomers having cake.
- Tick the 10% buffer if you want extra for seconds and photos.
- Choose Standard or Generous slices and your cake style.
- Check Your cake, worked out, then press Copy summary, Print or Email this draft to myself.
What it does
- Guests plus optional latecomers
- Optional 10% buffer
- Standard or generous slice sizes
- Three cake styles for rough costing
- Suggests tiers and portions provided
- Copy, print or email the summary
Use it with
- Party Food & Drink Calculator – enter guest numbers, party length, food style and drinks mix to get a rough guide to how much food and drink to order, with an estimated cost
- Buffet Food Label Maker – print folding buffet labels for each dish with its name, description, vegetarian and vegan badges and the 14 UK allergens marked
- Cupcake Topper & Food Flag Maker – make round or scalloped cupcake toppers and buffet food flags in your colours. Download a print-ready A4 PDF to cut out
- Drinks Token Maker – make printable numbered drinks tokens for your guests, with several token types, spares and an optional maximum bar cost worked out from your prices
Tim’s tip
Decide in advance who will cut and plate the cake, and when. Once it has been cut for photos, it is easy for it to sit untouched while everyone is dancing.
Made by Tim Daymond (Tinsel Tim). Tim has been a DJ since 1976 and has run Mobile Disco Network since 2013. He plays weddings and parties across Norfolk, Suffolk, Cambridgeshire and Lincolnshire. He is a Norfolk County Council Trading Standards Trusted Trader (ID 0000457), a member of the NADJ and the winner of 23 independent awards.
Why choose Tim · Awards · Reviews
Your privacy: this tool runs in your browser. Nothing you type is sent to Mobile Disco Network or stored on a server. Nothing is saved once you close the page. Email buttons only open your own email app, and nothing is sent until you press send.
Free to use, no sign-up. Last reviewed 11 October 2026.
Cake sorted?
Now the music
Tim can lead the room in Happy Birthday when the cake comes out, then get everyone back on the dance floor. Book Tinsel Tim across Norfolk, Suffolk, Cambridgeshire and Lincolnshire.
Rather talk it through? Call Tim on 07796 565918 or 01760 722283, or message him on WhatsApp.
Common questions
How many cake portions do I need for my party?
It depends on your guest numbers and whether latecomers will have a slice too. Enter your numbers above and we'll add a 10% buffer by default for seconds and cutting waste, then suggest a sensible number of tiers.
What's the difference between standard and generous slices?
Standard slices are tea-time-sized portions and give you the most servings per tier. Generous slices are bigger, dessert-sized portions, so you'll need more cake to feed the same number of guests.
Will my baker's price match the cost estimate here?
Not exactly — this is a rough guide based on typical pricing for each style, so your baker's actual quote will vary depending on their pricing, your flavours and any custom design work.
Party taking shape? Check Tinsel Tim is free on your date. Check your date → WhatsApp Tim