THE SUMFIZZ LIBRARY

Events and group planning calculators

Explore 16 free tools for events and group planning. Find banquet table seating plan, circular table place spacing, ice quantity for an event and more. Each calculator explains its inputs and method, with examples you can try using your own numbers.

THE SUMFIZZ LIBRARY

What are we working out?

16 calculators

⌕Browse all calculators →

Banquet table seating plan

Reserved seats are additional places kept empty, not guests already included in the count.

Events and group planning

Circular table place spacing

Place width is measured along the tabletop circumference, not as a straight chord.

Events and group planning

Ice quantity for an event

Servings and ice per serving are supplied by you.

Events and group planning

Balloon garland quantity

Use a measured balloon density and relative size weights.

Events and group planning

Wedding stationery quantities

Invitations are counted per household and inserts per individual guest.

Events and group planning

Cloakroom ticket allocation

Identical racks hold one coat per place.

Events and group planning

Invitation response projection

Applies your response-rate estimates to each group.

Events and group planning

Event registration lane planner

A deterministic interval model with constant processing time and all arrivals available at each interval start.

Events and group planning

Event check-in staffing

Rounds staffing up independently for each interval using your measured average handling time and utilization target.

Events and group planning

Wedding photography timeline

Adds a fixed setup, a per-person photo allowance and the matching transition allowance for each group.

Events and group planning

Party drink quantity planner

Uses only your serving assumptions.

Events and group planning

Cake tier serving planner

Area-only estimate for round tiers of equal relevant height.

Events and group planning

Balloon helium volume

Models each inflated balloon as a sphere, then adds your fill/loss allowance.

Events and group planning

Event lighting string layout

Adds a percentage allowance to straight spans plus one lead, then adds a purchasing spare.

Events and group planning

Guest transport shuttle schedule

Assumes every vehicle can complete a fixed number of identical round trips within each window and starts ready at the window opening.

Events and group planning

Event parking space planner

Conceptual double-loaded aisle module: each vehicle is allocated one bay plus half the aisle depth, then your circulation allowance.

Events and group planning