Multiply your guest count by shots each, add a spare cushion, then divide by the shots in one pack and round up. In our estimate, 100 guests at one shot each with a 20 percent cushion is 120 shots, or 12 packs of 10. The calculator below does that math and sends the result to whoever is buying supplies.
Work out your film
Change any box and the answer updates. The pack size and price start as examples, so replace them with what is printed on your film box and what your store charges. Your numbers sit in the link after the # sign, so a copied link reopens your result. Nothing goes to a server.
100 guests, 1 shot each: 12 packs
- Photos you keep
- 100
- Shots to buy, with the spare cushion
- 120
- Packs to buy
- 12 packs of 10, which is 120 shots
- Film cost, an estimate from your example price
- An example estimate of $180
- Album pages
- 25 pages at 4 photos a page

Quantity table for 100 guests at one and two shots each
Here is the same math written out for 100 guests. We assume a 20 percent spare cushion, packs of 10 and an example price of $15 a pack. All three are placeholders, so your real totals will move with your box and your store.
Table: Film for 100 guests at one and two shots each (our estimate, assumptions above)
| Plan | Photos kept | Shots to buy | Packs of 10 | Example film cost | Album pages at 4 a page |
|---|---|---|---|---|---|
| One shot each | 100 | 120 | 12 | $180 | 25 |
| Two shots each | 200 | 240 | 24 | $360 | 50 |
The second row is exactly double the first, which is the point. Every extra shot per guest adds one more pack for every ten guests. Before you pick two shots each, ask whether you will really use the second frame or whether it only feels safer.
If you choose one shot each, hold the spare cushion as your safety net. A guest who blinks gets a retake from the cushion, and nobody else pays for it.
What the spare shots are for
Instant film cannot be reprinted. A frame that is blurry, half dark or has a thumb in it is gone, and you have already paid for it. The cushion covers that loss, plus the frames you waste while testing the camera.
The table shows how the cushion changes the film count for 100 guests at one shot each.
Table: Spare cushion for 100 guests at one shot each, packs of 10 (our estimate, example price of $15 a pack)
| Spare cushion | Shots to buy | Packs | Example film cost |
|---|---|---|---|
| None | 100 | 10 | $150 |
| 10 percent | 110 | 11 | $165 |
| 20 percent | 120 | 12 | $180 |
| 30 percent | 130 | 13 | $195 |
| 50 percent | 150 | 15 | $225 |
Each step of ten points adds one pack at this guest count. That makes the cushion cheap insurance compared with the wedding day itself. As an estimate, start at 20 percent. Drop to 10 if one steady friend runs the camera all night, and raise it to 30 if guests work the camera themselves.
Round up, never down. If the math says 13 packs, buy 13. A guest who arrives late and finds no film left is the worst outcome in the whole project.
One shot per guest or per group
Couples, families and plus-ones often share one photo. That is a real saving, but only if you count groups instead of heads. Check your confirmed list first, and see how a guest list template splits people into households so the group count is quick to find.
For the example below, we assume the 100 guests arrive as 70 groups. Your own split will differ, so treat the 70 as a placeholder.
Table: One frame per person versus one per group, 100 guests (our estimate, 70 groups assumed, 20 percent cushion, packs of 10, example price of $15 a pack)
| Plan | Photos kept | Shots to buy | Packs | Example film cost |
|---|---|---|---|---|
| 1 per guest | 100 | 120 | 12 | $180 |
| 1 per group | 70 | 84 | 9 | $135 |
| 2 per guest | 200 | 240 | 24 | $360 |
| 2 per group | 140 | 168 | 17 | $255 |
Nine packs hold 90 shots, so the one-per-group plan leaves 6 shots unused. That is fine. Those 6 become extra spares for the end of the night.
The group plan has a cost beyond film. A group photo needs everyone to fit in the frame and nobody to look away. It also puts several signatures in one margin, so choose album pages with room to write.
How to round to the pack you can buy
Packs come in different sizes, so the same shot count can need different totals. Divide shots by pack size and round up to a whole pack. The leftover frames join your spare pile.
Table: 130 shots across three example pack sizes (our estimate, rounding up to whole packs)
| Shots in one pack | Packs to buy | Shots you own | Frames left over |
|---|---|---|---|
| 8 | 17 | 136 | 6 |
| 10 | 13 | 130 | 0 |
| 16 | 9 | 144 | 14 |
Read the shot count on the box before you order. If a store sells a twin pack, treat it as one pack with double the shots and enter that number in the calculator.
How many album pages you need
The page count depends on how many photos sit on a page, not on how much film you buy. Spare shots never reach the album, so count only the photos you keep.
Table: Album pages for 100 and 200 kept photos (our estimate, rounding up to whole pages)
| Photos per page | Pages for 100 photos | Pages for 200 photos |
|---|---|---|
| 2 | 50 | 100 |
| 3 | 34 | 67 |
| 4 | 25 | 50 |
| 6 | 17 | 34 |
Fewer photos per page leaves more room beside each photo for a message. Two per page is roomy. Six per page is a tight scrapbook where signatures squeeze into a corner.
Buy an album with a few more pages than the count, because someone will add a note on the back or fit in a stray frame. Set aside one page at the front for your names and the date.
Set up the station
A film guest book fails at the table, not in the math. Set up the station before the first guest arrives, so it runs without you.
- Pick a corner with a window or a lamp, away from the dance floor and the bar line.
- Put out the camera, the album, two pens that write on photo paper and a small tray for drying photos.
- Write a three-line card: take one photo, stick it on a page, write a note beside it.
- Name one friend to check the film count halfway through the evening and swap in the next pack.
- Pack spare camera batteries, tape for photo corners and a pen that works on glossy paper.
- At the end, tell your friend to take the camera, any unused film and the album home with you.
Ask the person running the evening where the station fits in your day-of schedule. A quiet stretch like cocktail hour works, and you can slot it into your day-of schedule before guests sit down for dinner. Put the sign-in station near the entrance so people see it as they arrive.
Mistakes that waste film
- Buying film for guests who may not come. Order from your confirmed count, not your invitation count. Spare packs from a cancelled guest are easy to use on the day.
- Opening every pack at once. Load one pack at a time. If the camera jams or the party ends early, the rest stays sealed.
- Leaving the camera unsupervised. A bored guest can burn five frames on a table of centerpieces. Hand the camera to your named friend and keep it near the station.
- Skipping the test shot. Take two or three frames before the event, in the room’s real light. A dark corner can ruin every photo you take there.
- Forgetting where the photos dry. Fresh instant photos are tacky. Give them a tray, not the album, until the image has fully appeared.
- Running out of power. If the camera uses batteries, buy spares and keep them in your emergency kit bag with the other small fixes.
The list is short because most of the real work is the first pass of math and the next pass at the table. If the film count is right and a friend is in charge, the rest is forgiving.
Fit the guest book into your budget
Film is a small line, but it adds up beside the album, the camera and the other pieces of your guest book. For a 100-guest wedding, you can check what 100 guests cost in total before you order. If you are still choosing between a polaroid book and other styles, the wedding guest book ideas page compares them by guest count and effort.
If the table plan matters more than the book right now, finish your seating chart first, since both depend on the same confirmed headcount.
Send the plan to the person buying film
Use the Copy button in the calculator to send your numbers as a short message, or copy the link so your partner sees the same result. Both carry only what you typed in the boxes. The message gives the guest count, the shots, the pack total and the album pages, so nobody has to redo the math.
Save for later
Pin it now and find it when you are ready to plan.
Questions people ask
How much film do I need for a polaroid guest book?
Multiply guests by shots each, then add a spare cushion for blurry, blinked and dropped shots. In our estimate, 100 guests at one shot each with a 20 percent cushion is 120 shots. Divide by the shots in one pack and round up. Read the count on your own box, because film types differ. The calculator above does the rounding for you.
How many photos per guest?
One photo each fills an album with every guest once and keeps film cost low. Two photos each gives you a better pick and a spare for the guest who blinked, but it doubles the film. A good middle path is one shot per person with a spare cushion, then a second try only on request. Couples and families can share one frame.
What do I put the photos in?
Use a photo album with sticky or slip-in pages, or a scrapbook with photo corners. Choose one with a blank margin beside each photo so guests can write a note. Check that the page fits your film's print size before you buy. A box of loose photos works too, but an album keeps the notes beside the faces they belong to.
How many spare shots should I plan for?
Plan a cushion of 20 percent as a starting estimate. Instant film cannot be reprinted, so a guest who blinks costs a full frame. As an estimate, 10 percent suits a calm crowd with a friend running the camera. Our estimate for guests who operate the camera themselves is 30 percent, since they learn on the first few frames.
Should guests take their own photo or should someone run the camera?
A friend with a steady hand wastes the least film, because they frame, hold still and press once. Guest-run cameras are more playful and tend to spoil more shots. If you choose self-serve, put a three-line instruction card next to the camera and raise your spare cushion. Either way, name one person to check the film count mid-evening.
Do I still need a guest book table if I use polaroids?
Yes, you need a spot for the camera, the album, pens and a place to dry or set the photos. Pick a corner away from the dance floor and the bar line, with a lamp or window light. Add a small sign that says what to do. Without a station, the album ends up in a bag by the coat rack.
Updated by bigdaydesk editorial