Tuna Salad Calculator
Tuna salad sandwiches, cans, and mayo for any guest count.
What it does
Tuna salad stretches cans across crowds. Counts from guests times sandwiches keep cans and mayo matched.
The tool above scales the batch. Fifteen guests at one sandwich need 15 sandwiches from 8 cans with 15 tbsp of mayo. The metric match is 225 ml.
Cans yield two sandwiches each. Five ounce tins drained well fill pairs without weeping.
Mayo runs a tablespoon per sandwich. Celery crunches in beside with onion stretching cans further.
Draining decides texture. Pressed dry tuna holds mayo while wet flakes weep by serving.
How to use
- Pick imperial (tbsp) or metric (ml).
- Enter guests.
- Enter sandwiches each.
- Read sandwiches first.
- Read cans next.
- Read mayo and drain cans.
Formula
- guests
- Headcount eating tuna salad.
- each
- Sandwiches per guest.
Cans are 5 oz with two sandwiches each. Metric mayo runs 15 ml per tbsp with matching cans.
Worked example
Example: 15 guests
Imperial defaults: 15 guests, 1 sandwich each. These are also the default values, so the page opens on this answer.
- Guests: 15 at 1 sandwich each.
- Sandwiches: 15 x 1 = 15.
- Cans: ceil(15 / 2) = 8 cans (5 oz).
- Mayo: 15 x 1 = 15 tbsp.
- Tool shows 15 sandwiches, 8 cans (5 oz), 15 tbsp mayo.
Reference table
| Guests | Sandwiches | Cans |
|---|---|---|
| 10 | 10 sandwiches | 5 cans |
| 15 | 15 sandwiches | 8 cans |
| 30 | 30 sandwiches | 15 cans |
Limits
- Count math only. Tastes vary.
- Celery and onion need own counts.
- Bread sizes shift yields.
- Allergies need labeled trays.
Common mistakes
- Undrained cans weeping trays.
- One can for ten sandwiches.
- No celery crunch at all.
- Morning assembly going soggy.
- Forgetting vegetarian trays.
Try it yourself
Quick checks. Answers sit tucked under each question.
10 guests, 2 each?
10 x 2 = 20 sandwiches. Cans are ceil(20 / 2) = 10 cans. Mayo is 20 tbsp.
30 guests, 1 each?
30 x 1 = 30 sandwiches. Cans are ceil(30 / 2) = 15 cans.
Questions
Sandwiches?
Multiply guests by sandwiches each. Here 15 x 1 = 15 sandwiches.
Cans needed?
Two sandwiches per 5 oz can, rounded up. Here ceil(15 / 2) = 8 cans.
Mayo?
One tablespoon per sandwich. Here 15 tbsp.
Watery salad fix?
Drain cans well or salad weeps by serving time.
Stretch cans?
Yes. Celery and onion stretch cans further.
Allergies covered?
No. Allergies need labeled trays.