How many spare chairs should I have?

A 5% spare is standard for events. This covers unexpected guests, damaged chairs, and last-minute changes. For a wedding with 100 guests, have at least 5 spare chairs available.

Can ceremony and dining chairs be the same?

If your ceremony and dining are in the same venue, chairs can often be moved between rooms. In this case, you only need enough for the larger of the two — not both combined. This calculator works out the maximum needed.

What types of chairs are available for hire?

Common UK hire options include Chiavari chairs (classic wedding style), folding chairs (budget-friendly), banqueting chairs, cross-back chairs, and ghost chairs. Prices range from £2-10 per chair depending on style.

PartyCalcs

Chair Calculator — How Many Chairs to Hire

Estimate how many chairs you need for your event, including spares.

Dining Guests

Ceremony Guests (optional)

Leave 0 if no separate ceremony

Hire Price per Chair (optional)

Include 5% spare chairs

Extra chairs for unexpected guests and breakages

How We Calculate This

This calculator works out chair quantities based on your guest count and event setup.

The formula

Total chairs = maximum of (dining chairs, ceremony chairs) + 5% spares

If ceremony and dining chairs can be moved between areas, you only need the larger number (not both combined). The 5% spare covers breakages and unexpected guests.

Frequently Asked Questions

Related Calculators

Guest Capacity Calculator

Work out how many guests fit comfortably in your venue based on room dimensions, layout style and standing or seated arrangements. Free calculator.

Dance Floor Calculator

Calculate the ideal dance floor size for your party or wedding based on guest count and how many people will be dancing. Free online calculator.

Table Layout Calculator

Plan table sizes, quantities and room layout for your event. Choose from round, rectangular or banquet-style arrangements. Free online calculator.

Marquee Size Calculator

Calculate the right marquee dimensions for your event based on guest numbers, table layout, dance floor and bar areas. Free online calculator.

Tent Calculator

Work out the right tent or gazebo sizes and quantities for your outdoor party, festival or garden event. Plan for all weather. Free calculator.

Last updated: February 2026

All calculations are estimates. Adjust quantities based on your guests and event type.