Refeed Day Calculator

Refeed Day Calculator

A refeed day is not a cheat day. This calculator keeps protein steady, trims fats to make room for carbs, and checks whether the high-carb bump still fits the weekly deficit.

📌Presets

Each preset loads a different deficit-and-refeed rhythm, from desk-cut weekends to competition prep blocks and long endurance work.

Calculator

Used in the BMR estimate when maintenance is not entered manually.
Current scale weight.
Used for the maintenance estimate.
Lean mass helps shape the glycogen refill target.
Harder weekly training usually justifies denser refeed carbs.
Leave at 0 to use the equation-based maintenance estimate.
This sets the weekly calorie target before refeeds are distributed.
100 means the refeed climbs back to maintenance.
Most cuts use one to three high-carb days.
Protein stays fixed across low and refeed days.
This guards against driving fats too low on the cut days.
Lower fats on refeed days make more room for carbs.
Common refeed density lands around four to seven grams per kilo of lean mass.
Live output

Refeed day snapshot

Enter your deficit and refeed plan to see how the high-carb day changes the week.

Refeed calories
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kcal/day
Refeed carbs
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g/day
Low-day calories
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kcal/day
Weekly average
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kcal/day

📊Refeed Metrics Grid

BMR
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Equation-based estimate
Maintenance
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Daily calories before the cut
Lean mass
---
Used to size the carb refill
Glycogen refill
---
Refeed carbs per kilo of lean mass

📑Reference Tables

Cut sizeDaily gapRefeed roleTypical lift
10-15%SmallTraining sparkNear maintenance
15-20%ModeratePerformance supportRestore most
20-25%LargeGlycogen refillOften full
25%+Very largeRecovery checkMonitor closely
Carb densityLean targetReadBest fit
3-4 g/kgPartial refillLighter bumpUpper body day
4-5 g/kgSolid refillBalancedStandard cut
5-6 g/kgDeep reloadHard trainingLeg or back day
6-7 g/kgFull pushWatch digestionStage block
PlacementBest beforeCarb splitWhy
Night beforeAM lower body35/40/25Wake up topped off
Same dayPM lift25/50/25Fuel the session
Two-day waveWeekend volume30/40/30Spread digestion
Post weigh-inCombat prep20/60/20Refill quickly
Refeeds/wkBest fitWatchResult
1General fat lossWeekend driftSimple setup
2High-volume liftingLow-day squeezeBetter output
3Endurance blockAverage caloriesMore fuel
4Very hard scheduleCut may stallBridge phase

💡Practical Tips

Use the carbs where they matter.

Place the refeed before your hardest lower-body, barbell, or long-duration conditioning session. Extra carbs are most useful when they can become training output instead of a random high-calorie day.

Do not panic over scale weight.

A glycogen refill pulls water with it, so the morning after a refeed often looks heavier. Compare body weight after several low days, not the first weigh-in after a carb push.

DisclaimerThis calculator gives educational planning targets, not medical nutrition advice. If you have diabetes, an eating disorder history, digestive issues, or you are peaking for a weight-class event, use a qualified coach or clinician to individualize the plan.

A refeed day is used to restore the glycogen stores in the body. Because many individuals reduces the amount of carbohydrates that they consume during the fat loss phase of their diet, those low carbohydrate intakes can lead to depleted muscle glycogen stores. A depletion of muscle glycogen can lead to a decrease in the physical performance of that individual, as well as a decrease in there motivation to perform physical training.

By increasing the amount of carbohydrates that an individual consumes on a refeed day, the individual can replenish those depleted muscle glycogen stores, allowing those individuals to maintain their physical performance during the fat loss phase of their diet. The biological purpose of a refeed day is to restore glycogen stores within the body, as well as to influence the hormone that are released by the body. Carbohydrates are stored in the muscles of the body as glycogen.

Refeed Days: Refill Muscle Energy and Help Your Workouts

By increasing the amount of carbohydrates that an individual consumes, the body utilize those carbohydrates to refill the muscle glycogen stores of that individual. Additionally, increasing the carbohydrate intake of the body increases the levels of the hormone leptin that the body releases. Leptin is the hormone that signals to the body that its not experiencing starvation; if the body is in a calorie deficit for long periods of time without refeed days, the body will experience a decrease in both its thyroid output and the energy that it can generate.

Thus, individuals utilize refeed days to combat these effects on the body. The amount of protein that an individual consumes should remain constant during a refeed day, as well as during the days that contains low amounts of carbohydrates. An individual should consume approximately one gram of protein for every pound of body weight that the individual possesses, or two grams of protein for every kilogram of body weight.

During refeed days, however, the individual should reduce the amount of fat that an individual consumes. Fats should be reduced to sixty or seventy percent of the amount of fat that are consumed during the other days of the week; the calories that are obtained from fats can be used to allow for an increase in the carbohydrates that an individual consumes on a refeed day. The time that an individual chooses for their refeed day may be important to the effectiveness of that refeed day.

An individual may choose to have their refeed day before they perform any physical activity of that week. For instance, if an individual plans to perform any physical training sessions during the morning hours, they may choose to consume carbohydrates the night before; this will allow for the glycogen stores within their muscles to become fully replenished prior to those training sessions. In contrast, if an individual has any training sessions during the evening hours, they may choose to consume the carbohydrates on the same day as those training sessions.

An individual may experience an increase in their weight on the scale after a refeed day. However, this increase in weight isnt due to an increase in the body fat of that individual. The weight that an individual gains after consuming carbohydrates is the result of the body storing those carbohydrates as glycogen.

Each gram of glycogen that the body stores also leads to the body pulling in four grams of water. Thus, the body contains more water after consuming carbohydrates, which leads to the increase in the weight of an individual on the scale after a refeed day. However, this weight gain is temporary; the body will return to its regular weight after the glycogen is used for energy.

Therefore, an individual should use the average weight of their body each week to monitor there progress, rather than their weight on the scale after a refeed day. An individual should also monitor their body fat percentage using measurements of their body, or visual while reflecting on their appearance in the mirror. The depth of the calorie deficit that an individual follows will determine the frequency with which that individual should utilize refeed days.

For instance, if an individual is creating a deficit of only ten to fifteen percent of their total calories that they consume each day, they may require one refeed day per week. If, however, an individual is creating a more significant calorie deficit of twenty-five percent or more of total daily calories, they may require more frequent refeed days. An individual that performs high volume of lifting may require two refeed days per week, while an individual that performs endurance training may require three refeed days each week.

In each of these cases, however, the average number of calories that are consumed each week should remain in a deficit; otherwise, the body will not continue to burn fat. Some of the mistakes that may occur during a refeed day are treating that day as a “cheat day,” wherein an individual consumes excessive amounts of junk food. If an individual consumes too many calories during a refeed day, they may create a new deficit for that week, which will cancel out the deficit that was created during the other days of the week.

In addition to these mistakes, an individual should not entirely skip refeed days; the body may experience a decline in performance and metabolic health if the individual skip refeed days entirely. Thus, an individual may choose to spread the carbohydrate intake throughout the day in smaller meals. Finally, an individual must ensure that there is still a minimum requirement of nutrition for that individual, such as requiring the fat intake to be at least twenty-five grams per day, and ensuring that the intake of protein remain the same.

I should of mentioned that naturaly, results vary. Some find this method more luxurius then others, but it depends based off the individual. You’ll find that moddern diets often ignore this, though the bodys response depends on how you’re managing it.

It’s important to avoid alot of sugar during these days, because it can affect teh overall results. Often, a person will recieve different results if they dont follow the plan. These furnitures of the diet is essential to success.

Refeed Day Calculator

Author

  • Hadwin Blair

    Hi, I am Hadwin, a Gym lover and have set up my own home Gym for daily use. Empower Gym Equipment! I share my real personalized experiences on the Gym equipment!

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