Event supply quantities
Translate attendance, per-person usage and a buffer into whole purchase packs.
Your starting point
LOCAL · PRIVATESample values are filled in. Change them to make this your own.
A little more clarity
RESULTYour result will appear here.
Run the sample to see how it works.Use this tool
- Enter the expected attendee count and extra percentage buffer.
- List each supply with per-person usage and units per purchase pack.
- Calculate the whole packs to order and resulting extra units.
Reading your result
Required units round up first; purchase packs then round up separately. Any positive demand requires at least one unit; zero usage requires no packs.
How this works
Required units = ceiling(people × per-person usage × buffer factor); packs round up.
Use the units shown beside each field. For monetary amounts, use one currency throughout; calculations do not convert currencies. Results normally display up to two decimal places. Nonzero values below 0.01 use up to six significant digits; values below 0.000001 use scientific notation (for example, 1E-7 means 0.0000001). Rankings use unrounded values, so displayed scores can look equal without being tied. CSV downloads retain numeric precision. Monetary rounding uses half-away-from-zero. Inputs or results beyond supported precision are rejected.
Assumptions & limits
Usage is user-supplied. Excludes venue stock, dietary or safety requirements; review pack rounding before ordering.
CSV inputs support quoted commas, doubled quotation marks and quoted line breaks. Headers are case-sensitive; a maximum of 500 data rows and 200,000 characters applies per table.
Results are planning aids based on the values you enter. Check important decisions and documents before using or sharing them.
