Diet Success Calculator

The Diet Success Calculator creates a transparent adherence score from four user-entered behaviors: calorie-target adherence, protein-target adherence, planned-activity completion, and sleep-target achievement. It is a progress-tracking tool for comparing weeks, not a clinical measure of health or a prediction of weight loss.

Each component is capped at 100%, then combined using visible weights. This prevents one unusually high value from masking another area. Because the score is user-defined, it is most useful when inputs are collected consistently and interpreted alongside weight trend, measurements, energy, and wellbeing.

Calculator inputs

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Result
Weekly adherence score
Nutrition component
Activity component
Recovery component
Score band

1. Enter calorie adherence

Use the percentage of tracked days that met your chosen calorie range.

2. Enter protein adherence

Use the percentage of days that met the protein target.

3. Enter activity completion

Compare completed planned sessions or minutes with the weekly plan.

4. Enter sleep achievement

Compare nights meeting the sleep target with total tracked nights.

5. Review the score and components

Use the component values to identify the most practical next adjustment.

Score = min(calorie adherence, 100) × 0.35 + min(protein adherence, 100) × 0.25 + min(activity completion, 100) × 0.25 + min(sleep achievement, 100) × 0.15

Where:

  • Calorie adherence — percentage of tracked days meeting the chosen range
  • Protein adherence — percentage meeting the protein target
  • Activity completion — percentage of planned activity completed
  • Sleep achievement — percentage of tracked nights meeting the sleep target

Assumptions: Weights are a practical scoring design, not a validated medical model. Values above 100% are capped so overperformance in one area cannot offset another.

What the result means

The result summarizes four self-reported adherence percentages using fixed weights.

This score is not validated for diagnosis, treatment, or prediction of health outcomes.

Given:

  • Calorie adherence: 85%
  • Protein adherence: 90%
  • Activity completion: 75%
  • Sleep achievement: 80%

Calculation:

Score = 85 × 0.35 + 90 × 0.25 + 75 × 0.25 + 80 × 0.15 = 29.75 + 22.5 + 18.75 + 12 = 83.0.

Result: 83.0 out of 100, classified as consistent.

The lowest component is activity completion, so that area offers the clearest opportunity for adjustment.

Does a high score guarantee weight loss?

No. The score measures adherence to entered behaviors, not energy-balance accuracy or physiological response.

Why cap each input at 100%?

The cap keeps extra performance in one category from hiding a shortfall in another.

Can I change the weights?

Not in this version. Use the score only if the displayed weighting matches your tracking priorities.

How often should I calculate it?

Weekly tracking is usually easier to interpret than daily scoring because one unusual day has less influence.

What else should I track?

Consider weight trend, waist measurements, training performance, hunger, mood, and medical indicators relevant to your situation.