Baked Potato Calculator
Baked potato time, weight, and butter for any potato count.
What it does
Baked potatoes time by size, not by count. Ten mediums take the same hour as two, with weight and butter scaling instead.
The tool above times the batch. Ten medium russets bake 60 min at 425 F weighing 5 lb with 10 tbsp of butter. The metric match is 2.3 kg with 142 g.
Sizes set both lines. Smalls near 5 oz bake 45 min, mediums near 8 oz bake an hour, and larges near 12 oz need 75 min.
Butter runs a tablespoon each. Sour cream, cheese, and chives split toppings trays beside.
Pricked skins bake safely. Steam escapes instead of bursting, with foil only for holding after.
How to use
- Pick imperial (lb) or metric (kg, g).
- Enter potato count.
- Pick size: medium suits buffets.
- Read time first.
- Read weight next.
- Read butter and prick skins.
Formula
- count
- Potato count.
- size
- Small, medium, or large russets.
Sizes run small 5 oz, medium 8 oz, large 12 oz. Metric runs kilos and grams with matching times.
Worked example
Example: 10 medium potatoes
Imperial defaults: 10 medium potatoes. These are also the default values, so the page opens on this answer.
- Potatoes: 10 medium russets.
- Time: medium bakes 60 min at 425 F.
- Weight: 10 x 8 oz / 16 = 5 lb.
- Butter: 10 x 1 = 10 tbsp.
- Tool shows 60 min at 425 F, 5 lb, 10 tbsp butter.
Reference table
| Batch | Time | Weight |
|---|---|---|
| 6 small | 45 min | 1.9 lb |
| 10 medium | 60 min | 5 lb |
| 4 large | 75 min | 3 lb |
Limits
- Time guide only. Ovens vary.
- Crowded racks need extra minutes.
- Toppings need own counts.
- Holding dries skins fast.
Common mistakes
- Same time for smalls and larges.
- No pricks, then bursts.
- Foil during baking, steaming skins.
- Cold toppings on bare tables.
- Microwaving crowds unevenly.
Try it yourself
Quick checks. Answers sit tucked under each question.
6 small potatoes?
Small bakes 45 min. Weight is 6 x 5 / 16 = 1.9 lb after rounding (1.875). Butter is 6 tbsp.
4 large potatoes?
Large bakes 75 min. Weight is 4 x 12 / 16 = 3 lb. Butter is 4 tbsp.
Questions
Bake time?
Pick time by size: small 45, medium 60, large 75 min at 425 F.
Total weight?
Multiply count by size ounces over 16. Here 10 x 8 / 16 = 5 lb.
Butter?
One tablespoon per potato. Here 10 tbsp.
Size weights?
Small 5 oz, medium 8 oz, large 12 oz russets in this plan.
Prick skins?
Yes. Prick skins so steam escapes.
Toppings included?
No. Toppings bars need their own counts.