PartyCalcs.uk
Wedding Guest Calculator — Day & Evening Numbers
Plan your wedding guest list with separate day and evening numbers.
How We Calculate This
This calculator estimates actual attendance and costs for day and evening wedding guests.
Formula
- Expected day = day invited × (1 − decline rate) × (1 + plus-one allowance)
- Expected evening = evening invited × (1 − decline rate) × (1 + plus-one allowance)
- Total cost = (day expected × day cost) + (evening expected × evening cost)
The optional plus-one allowance (under Advanced Options) increases the expected headcount to cover guests who bring a partner — set it to the percentage of attending guests you expect to bring a plus-one.
Frequently Asked Questions
The average UK wedding has 80-100 day guests and 120-150 total including evening guests. Budget-friendly weddings often have 40-60 day guests. Large weddings can exceed 200 total. Your venue capacity and budget are the main limiting factors.
Typically 10-15% of day guests and 15-25% of evening guests decline. Destination weddings see 20-30% decline rates. Midweek weddings have higher decline rates than weekends. Send invitations 8-12 weeks ahead to maximise attendance.
Evening guests are typically friends and extended family not invited to the ceremony and meal. A common ratio is 50-100% more evening guests than day guests. So if you have 80 day guests, invite 40-80 additional evening guests.
Each day guest costs £80-£200+ depending on your venue and catering. Evening guests cost £10-£30 for evening food (buffet or bacon rolls). Every extra day guest significantly impacts your budget, so plan carefully.
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Last updated: February 2026
All calculations are estimates. Adjust quantities based on your guests and event type.