2026-09-15 8 min

Nutrition Label Calculator

Free nutrition label calculator that converts any Nutrition Facts panel into % Daily Values, flags high and low nutrients, prices the whole package, and returns a 0–100 label score.

Calculator

Calories/serv

kcal

Per serving

Servings/pack

Pack claim

Total fat

Per serving

Sodium

Per serving

Carbs

Per serving

Protein

Per serving

Results update live as you type

Status:Pack 1000 kcal1 highs / 0 lowsHigh sodium — 80/100

Results

Whole-package calories1000 kcal

Label score80/100

Sodium %DV20.9%

Fat %DV15.4%

Carb %DV10.9%

Protein %DV16%

250 kcal x 4 servings

Label Breakdown

Nutrient	Per serving	%DV
Total fat	12 g	15.4% DV
Sodium	480 mg	20.9% DV
Total carbohydrate	30 g	10.9% DV
Protein	8 g	16% DV
Per serving	250 kcal	4 servings/pack
Whole package	1000 kcal	1 highs / 0 lows

Recommendations

▸The package holds 4 servings (1000 kcal) — most people eat it as one, so price the whole pack
▸Sodium runs 20.9% DV — compare brands and pick one under 10% per serving
▸Protein covers 16% DV — this item pulls its weight; build the meal around it
▸Compare %DV across brands at equal serving weights before deciding

Results

Caution

Whole-package calories

1000 kcal

250 kcal x 4 servings

Label score

80/100

High sodium — 5% low, 20% high rule

Sodium %DV

20.9%

480 mg vs 2,300 mg DV

Fat %DV

15.4%

12 g vs 78 g DV

Carb %DV

10.9%

30 g vs 275 g DV

Protein %DV

16%

8 g vs 50 g DV

FDA Daily Values with 5/20-rule flags. Panels legally vary ~20% — compare brands at equal weights for best signal.

Visualizations

% Daily Value per serving

15.4Fat

20.9Sodium

10.9Carbs

16Protein

Serving calorie mix

Fat cal42%

Carb cal46%

Protein cal12%

Label score

80/100

0100

Formula

Label quality from % Daily Values with the 5/20 rule, whole-package pricing, and protein credit.

Score = 100 − high-nutrient penalties + protein credit; Package = serving kcal × servings

Alternative Form

%DV = nutrient / Daily Value × 100 (fat 78 g, sodium 2,300 mg, carbs 275 g, protein 50 g)

Variables

Symbol	Name	Unit	Description
%DV	Percent Daily Value	%	Share of the 2,000-calorie reference diet per serving
Highs	High nutrients	count	Lines at or above 20% DV (fat, sodium, carbs)
Lows	Low nutrients	count	Lines at or below 5% DV
Package	Package calories	kcal	Serving calories times servings per container
Protein%DV	Protein credit	%	Protein vs 50 g DV; 10%+ earns score credit
Score	Label score	0-100	100 minus high penalties plus protein credit

Explanation

Highs punish, protein credits, and the package overrules the serving — the three rules behind every verdict.

Derivation

FDA Daily Values (fat 78 g, sodium 2,300 mg, carbs 275 g, protein 50 g). Penalties: sodium-high −25, fat-high −15, carby-low-protein −10; credits: protein 10%+ and clean low-calorie labels.

Step-by-Step Calculation

Follow each step to understand how the result is calculated from your inputs.

Step 1

Copy the panel numbers into one place.

Direct label transcription

Serving:250 kcal

Servings:4

Intermediate: Check the serving size in grams first

Result: Panel captured

Step 2

Convert each nutrient to % Daily Value.

%DV = nutrient / DV x 100

Fat:15.4%

Sodium:20.9%

Carbs:10.9%

Protein:16%

Intermediate: DVs: 78 g / 2,300 mg / 275 g / 50 g

Result: DVs priced

Step 3

Apply the 5/20 rule to each line.

≤5% low, ≥20% high

Highs:1

Lows:0

Intermediate: Highs drive the verdict; lows mark light items

Result: 1 highs found

Step 4

Price the whole package, not just the serving.

Package = serving kcal x servings

Package:1000 kcal

Intermediate: 250 x 4

Result: True cost revealed

Step 5

Convert highs and protein into one score.

Score = 100 − high penalties + protein credit

Score:80/100

Intermediate: Sodium high −25; fat high −15; protein 10%+ earns back

Result: Score 80/100

Step 6

Decide: buy, portion, or skip.

Status-led action

Status:High sodium

Intermediate: The package holds 4 servings (1000 kcal) — most people eat it as one, so price the whole pack

Result: The package holds 4 servings (1000 kcal) — most people eat it as one, so price the whole pack

Final Answer

1000 kcal

Worked Examples

See how the calculator works with different scenarios.

Scenario

250 kcal, 4 servings, 12 g fat, 480 mg sodium, 30 g carbs, 8 g protein.

Inputs

Serving:250 kcal

Servings:4

Calculation

Sodium 21% DV (high, −25) with protein 16% (+5); package 1,000 kcal.

Result

Score ~80 — High sodium

Interpretation

The serving looks fine; the can you will finish does not.

Understanding Your Result

Your Result: Whole-package calories: 1000 kcal

Typical range: 80+ balanced; 55–79 check portions; below 55 multiple highs or a heavy package.

What This Means

Turns any Nutrition Facts panel into % Daily Values with 5/20-rule flags — expressed as per-serving DVs, package totals, and a 0–100 label score.

Why It Matters

Serving sizes are marketing — package math plus %DV is the only honest read.

Professional Interpretation

Counsel like a dietitian: equalize serving weights, compare sodium, then price the package you will actually eat.

Servings are the lever

Shrinking servings is the oldest label trick — package calories expose it instantly.

Protein changes the verdict

Equal-calorie items with 10%+ protein DV satisfy longer, so the score credits them.

Recommendations

•Price the package, not the serving
•Compare sodium %DV across brands first
•Treat 20%+ sodium or fat as a switch-brands signal
•Build meals around 10%+ protein items
•Recheck labels yearly — formulas change quietly

Educational Content

Introduction

Free nutrition label calculator that converts any Nutrition Facts panel into % Daily Values, flags high and low nutrients, prices the whole package, and returns a 0–100 label score.

Concept Explanation

Transcribe the panel, convert to %DV with the 5/20 rule, multiply to package reality, and score highs against protein value.

Applications

▸Decoding any grocery label in seconds

▸Comparing brands at equal serving weights

▸Pricing snack packages honestly

▸Spotting sodium traps

▸Building meals around protein value

▸Teaching kids the 5/20 rule

Benefits

•Instant %DV conversion
•5/20-rule flags built in
•Whole-package reality check
•Brand-comparison ready
•Protein-aware scoring

Limitations

•Panel accuracy varies ~10–20%
•Ingredient quality unjudged
•Vitamins and minerals optional on labels
•Reference diet, not personal needs

Best Practices

•Read servings first, always
•Equalize weights before comparing
•Judge the package you will eat
•Favor 10%+ protein items
•Recheck favorite brands yearly

Common Misconceptions

Myth: Low-calorie labels are always healthier.

Truth: A 100-calorie pack with 30% DV sodium plus three servings still loses to a 250-calorie clean single.

Myth: %DV matches my personal needs.

Truth: It matches a 2,000-calorie reference — personal needs come from TDEE and macro math, not labels.

Myth: One perfect day proves the pattern.

Truth: Averages across ordinary days decide outcomes — single best days mislead.

Practical Tips

•Read servings before anything
•Hunt sodium %DV first
•Multiply to the package instantly
•Reward 10%+ protein
•Compare two brands side by side
•Recheck reformulations yearly

Common Mistakes

Trusting the serving

Multiply to the package you will actually finish.

Comparing unequal servings

Equalize gram weights first, then compare %DV.

Ignoring sodium for calories

Sodium %DV predicts pressure better than calories predict fatness.

Fearing all highs

High protein or fiber is a plus — only sodium, fat, and sugar highs warn.

Skipping the package count

Check servings-per-container on every snack pack.

Assumptions

This calculator makes the following assumptions to provide estimates:

FDA Daily Values: Fat 78 g, sodium 2,300 mg, carbs 275 g, protein 50 g reference diet.

Honest panels: Label numbers taken at face value within legal tolerance.

Serving realism: Package math assumes you eat what most people eat.

Adult reference: 2,000-calorie reference diet for %DV context.

Limitations

Be aware of these limitations when using this calculator:

Tolerance slack: Labels legally vary ~20% from lab values.

No quality grades: Whole vs refined, additives, and sourcing unjudged.

Partial panel: Fiber, sugars, and micronutrients optional in this quick screen.

Not medical advice: Hypertension, kidney, and diabetic diets need clinicians.

Frequently Asked Questions

Answers to common questions about this calculator.

What does % Daily Value mean?

% of a 2,000-calorie reference diet in one serving. It scales portions, not personal needs — but it ranks nutrients honestly.

What is the 5/20 rule?

5% DV or less is low, 20% or more is high per serving. High sodium or fat deserves a brand comparison; high fiber or protein is a plus.

Should I judge the serving or the package?

The package. Makers shrink servings to flatter numbers — multiply to what you will actually eat.

Which line matters most?

Servings per container first, then sodium, then the calorie reality of the package. Most label traps hide there.

Are %DV targets personal?

No — one reference diet for all. TDEE and macro calculators personalize; labels standardize.

What are the Daily Values used here?

Fat 78 g, sodium 2,300 mg, carbs 275 g, protein 50 g — current FDA reference values.

Is a high %DV always bad?

No. 20%+ fiber, protein, or vitamins is a selling point; 20%+ sodium or saturated fat is the warning.

How do I compare two brands?

Equalize serving weights first — then compare sodium %DV and package calories head to head.

What about sugar on labels?

Added sugars carry a 50 g DV. High added sugar with low protein is the classic poor-score pattern.

Do low-calorie labels always win?

Not if the package holds four servings you will eat as one — package math decides.

Why does protein earn credit here?

Protein per serving predicts fullness and meal value — 10%+ DV marks items worth building meals around.

When should I skip an item?

Two or more highs plus a 600+ kcal package you will finish alone — portion it or pass.

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Related Guides

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Setting Calories for Fat Loss

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Building a Balanced Plate

Produce, protein, and whole grains in the right shares.

Glossary

Technical terms used in mortgage calculations explained in plain language.

% Daily Value: Share of a 2,000-calorie reference diet per serving — the ranking unit.
5/20 rule: 5% DV or less is low, 20% or more is high — the quick-read rule.
Serving size: Maker-defined portion — marketing lever, not a recommendation.
Servings per container: Serving count in the pack — multiply for package reality.
High nutrient: Any line at 20%+ DV in this screen (fat, sodium, carbs).
Protein credit: Score bonus for 10%+ protein DV — fullness and meal value.
Package pricing: Serving kcal times servings — the true cost of finishing the pack.
Reference diet: The 2,000-calorie standard behind every %DV number.

Authoritative References

Trusted sources and standards referenced by this calculator.

FDA — How to understand the label FDA — Daily Value on labels American Heart Association — Sodium U.S. Dietary Guidelines for Americans CDC — Nutrition resources Academy of Nutrition and Dietetics

Applicable Standards

U.S. Dietary Guidelines for AmericansFDA Nutrition Facts label rules (21 CFR 101)NIH Office of Dietary Supplements fact sheets

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Page Information

Last Updated:

2026-09-15

Version:

2.0.0

References:

License:

Free to use for educational and professional purposes.