More in Daily Frugality
What this calculator does
A hardcoded lookup of common fast-food and budget items ranked by both calories per dollar and protein per dollar, so the cheapest option is also the most filling.
The math
Best value = lowest combined normalized cost per 1000 calories and cost per 100g protein. Cost per 1000 calories = (1000 ÷ calories) × cost; cost per 100g protein = (100 ÷ protein) × cost.
Worked example
A cheesy bean and rice burrito at 430 calories and 14g protein for $1.00 gives about 430 calories per dollar and 14g protein per dollar, making it a strong cheap-and-filling option.
Why this matters
Small daily habits are the easiest to change and the fastest to compound. This calculator shows the real savings from one swap.
Methodology and transparency
This page publishes the exact formula used to compute the result, so you can verify it in a spreadsheet or check the assumptions against your own situation. The worked example uses the tool default inputs; change any number and the result updates live in your browser. No data is sent or stored.
Common questions
Is this the healthiest choice?
No single fast-food item is a complete diet. The ranking favors the most calories and protein per dollar, which helps when you are stretched, but pair it with vegetables, fruit, and whole grains when you can.
Are prices accurate?
Prices are rough static estimates. Local prices and promotions vary, so use the result as a directional comparison, not an exact menu price.