Free tool
Classroom signup response planner
Estimate how many families answer the first send and each of two reminders, and how many minutes of individual chasing you are left holding.
Free tool, no sign up
Classroom contribution ask calculator
Put in the classroom budget, the size of the class and how many families usually pay, and see the per family number you should publish.
The arithmetic most room parents run is budget divided by class list. Six hundred and twenty dollars across twenty eight families is twenty two dollars each, so the message goes out asking for twenty two dollars, and the drive lands about a hundred and eighty dollars short. Nothing went wrong. The math simply assumed every household would pay, and in a typical elementary classroom somewhere between six and eight will not, for reasons that are none of your business and should stay that way.
This calculator works backward from the money you actually need. It subtracts whatever the class fund already holds, applies the participation rate you have really seen, adds back the processing fee your payment rail keeps, and rounds the result to a number that reads like a request rather than an invoice. If the published figure comes out uncomfortably high, that is useful information about the budget, not about your neighbors.
Your result
Dollars left to raise
$575
Your approved budget minus what the class fund already holds.
Families likely to pay
20
The participation rate applied to the class list, not the whole roster.
True ask per paying family
$29.95
What each paying household has to cover once fees are added back.
Amount to publish
$30
The same figure rounded up to the nearest five dollars for the message.
Publish the rounded figure as a suggestion and say plainly that any amount is welcome, because that sentence is what protects the participation rate you entered.
Why the ask is never the budget divided by the class list
Three things sit between the two numbers. Some families will not pay, some payment rails keep a slice, and some money is already sitting in the class fund from the fall drive. Ignore all three and you are short. Handle all three and the published number is defensible when a parent asks how you arrived at it, which someone will.
Participation is the input people flatter. A first year room parent guesses ninety percent. A second year room parent who kept records knows her classroom runs closer to seventy, that it drops in December when families are already stretched, and that it recovers for the spring trip because the ask has a face on it. Enter the real number and the drive closes on time.
What to do when the number comes out too high to send
Somewhere around thirty five dollars per family, a classroom ask starts feeling like tuition, and in a Title I school that threshold is a great deal lower. If the calculator hands you a figure you would not want to receive yourself, the answer is to change the budget rather than the message. Cut the catered item, ask the parent group to cover the teacher gift, or split one drive into two smaller ones with different purposes.
The other lever is participation itself. A clear purpose, a nine day window, a real deadline and two scheduled reminders will move a classroom from sixty percent to eighty far more reliably than raising the ask will. Run the numbers both ways here before you decide which lever you are pulling.
Questions about this calculator
Should I show the suggested amount or let families choose?
Show the amount. A drive with no number gets a wide spread of small contributions and a much lower total. Publish the figure, then add one line saying any amount helps and no family needs to explain, which keeps the door open without losing the anchor.
What participation rate should I use if I have never run a drive?
Start at sixty five percent for a first classroom ask with no history. Elementary classrooms in the fall tend to run higher than that once families know you, and December drives run lower. Record what you actually get and use your own number next time.
Do I have to add the processing fee back into the ask?
You do if the class needs the full budget. A three percent fee on a six hundred dollar drive is about eighteen dollars, which is roughly the craft supplies. The alternative is to absorb it out of the carryover and say so in the summary.
More free tools and working documents
Working document
The classroom contribution drive checklist
Every step of a classroom money ask in order, from the approval email you send first to the summary you owe families in the week after it closes.
Carry that number into an October drive
The figure on this screen is the one you put in the message the teacher approves. Getting it back from twenty eight households is the other half, and it is the half that eats the month. On a demo we set up one classroom ask with your amount, your date and reminders on day four and day eight, then show you the list of families still open updating itself.