If you want the reasoning behind the numbers rather than just the numbers, the guide to room blocks and attrition covers how the contract works, which clauses are worth negotiating, and why the rooms outside your block are usually the larger half of your event’s lodging.
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Free tools for event organizers
The lodging side of an event runs on a handful of numbers that are annoying to work out and expensive to get wrong. These do the arithmetic. They are free, they need no account, and nothing you type is stored or sent anywhere.
Room block attrition calculatorEnter your block, your clause and your pickup. See exactly what an unfilled room costs you.Open the calculator →Room block size calculatorWork out how many rooms to contract for — and how many nights your attendees will book somewhere else.Open the calculator →