Stop buying $5 lattes. Stop ordering $20 takeout. Cook at home, and you will be a millionaire. We have all heard this financial advice. And while it is mathematically true that groceries cost less cash than restaurant meals, this advice completely ignores the most valuable asset you have: Your Time.
Are You Losing Money by Cooking?
Find out if meal prepping is actually a good financial decision for your specific hourly wage and cooking speed.
Calculate Opportunity CostThe "Free" Labor Fallacy
When people compare the cost of eating out to cooking at home, they usually just look at the receipts.
"This steak dinner cost me $35 at the restaurant, but I bought the ingredients for $10 at the grocery store! I saved $25!"
You did save $25 in cash. But what did you trade for it? To make that $10 steak, you had to:
- •Drive to the grocery store (15 mins)
- •Shop for the ingredients (20 mins)
- •Wait in the checkout line and drive home (25 mins)
- •Prep the kitchen and cook the meal (30 mins)
- •Wash the dishes and clean the kitchen (20 mins)
You spent nearly two hours of manual labor to save $25. You essentially hired yourself as a personal chef, shopper, and dishwasher for a wage of $12.50 an hour.
When Restaurants Mathematically Win
If your hourly wage is $50/hour, and you spend two hours cooking to save $25, you are making a terrible financial trade.
This is the concept of Opportunity Cost. If you could have used those two hours to take on a freelance project, learn a high-income skill, or even just recover so you could perform better at your main job, the $35 restaurant meal is actually a bargain. You are buying back two hours of your life for a net premium of $25 ($12.50/hr).
For high-earners, freelancers, and entrepreneurs, paying a restaurant or a meal-delivery service to handle the logistics of food is not a luxury—it is a business expense that frees up time to generate higher ROI.
The Magic of Batch Cooking (Meal Prepping)
Does this mean you should eat out for every meal? Not necessarily. The math changes dramatically when you introduce economies of scale: Meal Prepping.
If you spend 3 hours on a Sunday cooking 10 meals, your math looks very different.
- 10 Restaurant Meals = $150 cash + 5 hours of driving/waiting.
- 10 Prepped Meals = $40 cash + 3 hours of cooking/cleaning.
In this scenario, meal prepping is the undisputed champion. You save $110 in cash AND you save 2 hours of time compared to going to a restaurant every day. When an activity saves you both cash and time, it is an absolute financial no-brainer.
The Joy Factor
There is one crucial caveat to all of this: the joy of cooking.
Opportunity cost assumes that the time you spend cooking could be spent doing something more valuable. But if you genuinely enjoy cooking—if pouring a glass of wine and chopping vegetables is how you decompress after a stressful day—then cooking is a hobby. You don't assign an hourly wage cost to watching Netflix or playing golf, and you shouldn't assign one to cooking if it brings you joy.
However, if you view cooking as a dreaded chore that you only do to save a few bucks, you need to run the numbers. You might find that buying back your time is the best investment you can make.