How to count calories when eating out

By the C for Calories team · Updated October 12, 2026

Restaurant meals are where most calorie counts go wrong. A few habits keep them in check.

Many chains post calories on menus or websites. If the number is there, use Quick Add to log it in seconds. It's usually more accurate than any estimate.

Photograph the plate

No numbers? Take a photo before you eat. Then add a buffer: restaurant food is usually cooked with more oil, butter and sugar than you'd use at home. Adding a tablespoon of oil (about 120 kcal) to a cooked dish is a reasonable default.

Don't forget the extras

Think in weeks

One big meal doesn't undo a week of consistency. Log it honestly, move on, and look at your weekly average.

FAQ

Frequently asked questions

How accurate are restaurant calorie counts?

Posted values can be off by 10–20% or more, but they're still the best starting point.

Should I skip logging when eating out?

No. A rough entry is far better than nothing, and it keeps the habit going.