Macro Targets Calories, macros, and timelines

Free macro calculator

Calculate your starting macros. Then adjust them from real results.

Get a calorie target, weight-based protein range, minimum fat target, flexible carbohydrates, and a pace-based goal window. Return after two weeks to calibrate the plan from your logged intake and weight trend.

Calculate my macros Update an existing plan
Weight loss, maintenance, or lean gain Weight-based macro ranges Private, browser-based check-ins

Calculator

Calculate your calories and macros

Fill in your stats and goal. The calculator sets protein primarily from body weight and training, protects a minimum fat target, and uses remaining calories for carbohydrates.

Health note: this tool provides educational estimates for generally healthy adults, not medical nutrition advice. The standard formula uses sex assigned at birth.

Units

Calculation mode

Ignored if you select maintenance.

Wearable estimate variables

Use recent averages, not a single exceptional day. Consumer devices can systematically over- or underestimate energy expenditure.

Use a multi-day average from your health app or wearable.
Resting plus active energy becomes the wearable starting estimate.

If any item does not apply, or a condition or medication materially affects weight or appetite, use a qualified clinician instead of this general calculator.

Preferences are saved in your browser with local storage. They are not sent back to the site unless you submit the form.

Results panel

Enter your stats to see a calorie target, macro breakdown, pacing note, and projected timeline.

Maintenance calories

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Daily target

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Protein

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Goal date

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Quick start: if you do not have wearable energy data, choose Standard formula, enter your age, height, weight, sex, and activity level, then adjust after two to four weeks of real-world tracking.

Adaptive check-in

Already have targets? Update them from your results.

Paste 7-21 days of weigh-ins and your average logged intake. Macro Targets smooths the noise, compares your actual pace with the plan, and recommends a conservative update of no more than 200 kcal/day.

Local-first by design. Check-in data is calculated and saved in this browser. It is not submitted with the form and can be exported as JSON for your own backup.

Your current plan

Load a plan saved above or enter the targets you have been following.

CSV, tab-separated, or pasted table rows are accepted. Use at least 7 entries; 14-21 days gives a better signal.

Your trend-based update appears here

Daily scale readings are noisy. The check-in uses a regression trend across all valid weigh-ins instead of reacting to one day.

  • Actual pace compared with target pace
  • A bounded calorie adjustment
  • Updated carbs and goal-date range
  • A confidence rating and next check-in date

Macro guide

How to calculate macros from calories

A good macro calculator gives you a starting point with feedback built in. This site makes the calorie and macro calculation visible so you can understand what to change later.

1

Estimate maintenance

Wearable estimate adds recent resting and active energy averages. Standard formula uses Mifflin-St Jeor plus an activity multiplier.

2

Set the goal

Weight loss uses a deficit, maintenance stays near TDEE, and lean gain uses a conservative surplus.

3

Check the pace

The calculator caps aggressive rates when they collide with the intake floor or weekly body-weight guardrail.

4

Build macro ranges

Protein is weight- and training-based, fat gets a practical minimum, and carbohydrates use the remaining calories.

Estimated mode formula

Estimated mode uses Mifflin-St Jeor to estimate resting energy, then multiplies by your activity factor to estimate total daily energy expenditure.

BMR = (10 x weight kg) + (6.25 x height cm) - (5 x age) + sex constant TDEE = BMR x activity factor

Wearable estimate

A wearable estimate is useful when your health app provides consistent resting and active energy averages, but device calorie estimates are not ground truth.

TDEE = resting energy + active energy Daily target = TDEE +/- goal adjustment

Transparent by default

See every equation, guardrail, source, and known limitation.

Methodology version 2.0 documents activity factors, calorie floors, pace caps, macro logic, exclusions, and revision history.

Read the full methodology

Use cases

Macro calculator targets by goal

The same calculator can support different goals, but the way you interpret calories, protein, carbs, and fat should change with the goal.

Macro calculator for weight loss

Use the result as a calorie deficit with enough protein to support training and lean mass. Watch weekly trends, not single weigh-ins.

Macro calculator for maintenance

Use the target to stabilize intake and learn your normal range before dieting, reversing, or increasing training volume.

Macro calculator for lean gain

Use a modest surplus and slower pace so the plan supports muscle gain without turning into an untracked bulk.

Adjustments

Use your result, then calibrate it

Your first target is an informed estimate. After 14 days, use the adaptive check-in above to compare actual trend pace with the plan.

Run a two-week test

  • Hit your calories and protein as consistently as possible.
  • Weigh under similar conditions and let the trend smooth daily noise.
  • Keep training, steps, and sleep reasonably consistent.
  • Do not adjust based on one high-salt meal or one unusual day.

Adjust in small steps

  • Use the check-in tool to compare actual pace with target pace.
  • Keep adjustments bounded to 100-200 kcal/day.
  • Change carbohydrate and fat before changing the protein priority.
  • Recalculate after meaningful body-weight or activity changes.

Macro engine

How the macro targets are built

Macro Targets no longer scales protein as a fixed percentage of calories. The sequence below keeps body size and training at the center of the plan.

1. Protein range

1.2-2.2 g/kg

The exact range is shaped by goal, typical training, and eating preference.

2. Fat minimum

At least 0.6 g/kg

The eating preference can raise the working fat target when calories allow.

3. Carbohydrates

Remaining calories

Carbohydrates flex around the protein priority and fat target.

4. Practical range

Not one perfect number

The result emphasizes a protein floor and a flexible calorie window.

Protein math

4 kcal/g

Protein and carbohydrates are calculated at 4 calories per gram.

Fat math

9 kcal/g

Fat is calculated at 9 calories per gram, so grams are lower at the same calorie share.

Wearable data

Where to find wearable energy estimates

If you use a wearable estimate, use a calm average from recent days instead of one exceptional day. Consumer devices can be systematically high or low, so calibration from intake and weight trend still matters.

What to look for

  • Resting energy, resting calories, or basal energy
  • Active energy, move calories, or exercise calories
  • A 21-28 day average when available
  • Recent data from days with normal wear time

Why averages matter

  • Travel, illness, long workouts, and missed wear time can distort single days.
  • Rolling averages smooth out unusually high or low burn days.
  • Seven days gives medium input confidence; 21-28 days is a better starting estimate.
  • The adaptive check-in provides the strongest calibration signal.

Optional tools

Tracking tools that can make the estimate more reliable

None of this gear is required. The real value is consistency: better weigh-ins, clearer intake data, and more stable energy estimates.

Smart scale for logging regular weigh-ins

Smart scale

Helpful for consistent morning weigh-ins and trend tracking, especially when you want to monitor progress against your target pace.

View example
Wearable for tracking resting and active energy burn

Wearable tracker

Useful when you want a wearable starting estimate and already collect resting and active energy data from a device you wear consistently.

View example
Food scale for portion tracking

Food scale

A food scale often improves macro tracking more than a calculator tweak because it tightens up your actual intake data.

View example

About

Macro Targets is built for practical planning

The site is meant to help you move from vague goals to a plan you can test: a calorie target, macro grams, pacing logic, and a repeatable adjustment process.

What this tool does well

  • Creates a practical starting point for calorie and macro planning.
  • Lets you choose between a wearable estimate and a standard formula.
  • Updates a saved plan from logged intake and a smoothed weight trend.
  • Shows pacing and timeline tradeoffs instead of hiding the math.

What it does not do

  • Diagnose medical conditions or replace personalized care.
  • Account for every factor that can change real-world energy needs.
  • Guarantee a specific rate of weight change.

FAQ

Macro calculator questions

Short answers for the decisions people usually need to make before using a macro target.

Is this a free macro calculator?

Yes. Macro Targets is a free macro calculator that estimates maintenance calories, adjusts them for weight loss, maintenance, or lean gain, and translates the result into protein, carbohydrate, and fat targets.

Should I use a wearable estimate or the standard formula?

Use a wearable estimate if you have consistent resting and active energy averages from a health app. Use the standard formula if you only know age, height, weight, sex, and activity level. Neither is ground truth; calibrate either one from logged intake and weight trend.

Why was my target pace adjusted?

The calculator reduces aggressive pacing when it would push intake below the calorie floor used on this site or exceed the weekly body-weight cap built into the tool.

Are macro calculator results exact?

No. They are planning estimates. Use the result as a starting point, collect at least 7 days of consistent data, and use the adaptive check-in to make a bounded adjustment.

Does Macro Targets save my inputs?

The initial calculator is processed on the web server when submitted. Form preferences, saved plans, and adaptive check-ins can be stored in your browser's local storage. Check-in analysis stays in the browser and is not sent with a form submission.