Hotel Group Block Cost Calculator

Booking a hotel room block for a wedding, conference, or group trip? Enter the number of rooms blocked, nightly rate, number of nights, and your expected pickup (fill) rate to estimate total cost and potential attrition penalty.

Estimated Total Cost
Rooms Expected to Fill
Cost of Filled Rooms
Attrition Shortfall (Rooms)
Attrition Penalty Cost
Total Estimated Cost

About this calculator

Calculate total costs and potential attrition penalties for a hotel room block reserved for a group event, wedding, or conference.

Frequently Asked Questions

What is hotel attrition?

Attrition is the penalty a group pays when it doesn't fill enough of its contracted room block, usually a percentage of the unfilled rooms' revenue.

How is the attrition threshold set?

It's negotiated in your hotel contract, often 80-90% of the blocked rooms. Filling below that threshold typically triggers a penalty for the shortfall.

How can I avoid attrition penalties?

Negotiate a lower attrition threshold, block fewer rooms conservatively, or actively track and boost room pickup through reminders to attendees.