What Is a Weekly Calorie Bank?
A calorie bank treats your weekly calorie allowance like money in an account. Instead of hitting the exact same number every single day, you eat a little lighter on your quiet weekdays, set those saved calories aside, and spend the balance on one big meal, brunch, birthday dinner, or party. The week still adds up to the same total, so a 15% deficit on a 2,200 kcal maintenance still averages about 1,870 kcal per day and roughly 13,090 kcal across the week, no matter how unevenly you spread it.
How the Bank Math Works
We start from your maintenance (TDEE), apply your weekly goal to find the daily average, then multiply by seven to lock the weekly budget. We carve out the big-meal day, and the remaining six days share what is left. The gap between your normal daily average and those leaner days is exactly what you bank, so each light day quietly chips in toward the splurge.
weeklyBudget = TDEE x (1 + goalAdj) x 7; lightDay = (weeklyBudget - bigMeal) / 6; bankedPerDay = dailyAvg - lightDayWhy It Beats Just Winging It
Most people blow a diet not on Tuesday lunch but on Saturday night, and then feel like the whole week was wasted. Banking flips that script: the splurge is planned and paid for in advance, so there is no guilt and no spiral. A 1,500 kcal celebration dinner is about 11% of a 13,090 kcal week, which four light days near 1,650 kcal cover comfortably. The calculator enforces a 1,000 kcal floor on your other days, so if a splurge is simply too big to fund safely, it flags an over-draft and tells you to shrink the meal, add bank days, or ease your goal.
Frequently Asked Questions
Is banking calories the same as starving myself before a big meal?
Does spreading calories unevenly hurt my weight loss?
How far ahead should I start banking?
What if the calculator says I am over-drafted?
Common Tip Percentages
| Service | Typical Tip Range | Notes |
|---|---|---|
| Restaurant (sit-down) | 15–20% | 20%+ for exceptional service |
| Food delivery | 10–20% | Consider extra for long distances |
| Taxi / rideshare | 10–20% | More for assistance with luggage |
| Hotel housekeeping | $2–5/night | Leave daily, not just at checkout |
| Barber / hair salon | 15–20% | On pre-discount total |
| Pizza delivery | 10–15% or $3–5 minimum | Higher in bad weather |
General Household Budget Ratios (50/30/20 Rule)
| Category | % of Net Income | Examples |
|---|---|---|
| Needs | 50% | Rent, groceries, utilities, insurance |
| Wants | 30% | Dining out, entertainment, hobbies |
| Savings / Debt | 20% | Emergency fund, retirement, extra payments |
Common Measurement Conversions for Everyday Use
| Quantity | US / Imperial | Metric Equivalent |
|---|---|---|
| 1 cup | 8 fl oz | 237 mL |
| 1 pint | 16 fl oz | 473 mL |
| 1 quart | 32 fl oz | 946 mL |
| 1 gallon | 128 fl oz | 3.785 L |
| 1 lb | 16 oz | 453.6 g |
| 1 ft | 12 in | 30.48 cm |