Protein Calculator Australia

How this daily protein estimate works

Enter total body weight in kg and choose a goal. The main daily result is weight × the selected fixed multiplier: General health 1.2, Fat loss 1.8, Training 1.7 or Muscle gain 2.0 g/kg/day. Separate lower and higher comparisons use 1.2 and 2.2 g/kg/day. This tool does not calculate a per-meal amount or adjust the estimate for age, height, sex or activity.

What this calculator estimates

Compare fixed protein-per-kilogram presets with total body weight. The main result changes with the selected goal; it does not calculate protein already eaten or independently assess a medical requirement.

Inputs and calculation method

This protein calculation uses body weight and the selected goal only. General health uses 1.2 g/kg/day, Fat loss 1.8, Training 1.7 and Muscle gain 2.0. These fixed presets let you compare scenarios; they do not assess training load, age, medical needs or the protein supplied by your meals.

Formula and units

Protein grams/day = weight in kg × the selected goal multiplier. The panel also shows fixed comparisons at 1.2 and 2.2 g/kg/day. All outputs are rounded to whole grams.

How to use it

1. Enter body weight in kilograms.
2. Choose the goal preset and calculate.
3. Read the multiplier behind the main result and the separate range comparisons.
4. Use food portions and labels to assess how much protein your existing meals supply.

Worked example

At 70 kg, Training gives 70 × 1.7 = 119 g/day. General health gives 84 g, Fat loss gives 126 g and Muscle gain gives 140 g. The fixed lower and higher comparisons are 84 g and 154 g regardless of the selected goal.

How to read the result

The presets are planning choices, not a claim that every person with the same weight and goal has identical needs. The “General health” label selects this tool’s 1.2 factor; it should not be confused with an official population recommended intake.

Protein-entry mistakes to avoid

• Entering pounds into the kg field.
• Reading a fixed goal preset as an individual clinical requirement.
• Assuming supplements are needed without checking the protein already supplied by ordinary foods.
• Expecting a daily result to calculate how much belongs in each meal.

Method limitations

Training load, total energy intake, age and medical needs can affect appropriate protein intake even though they are not evaluated here. AIS sport guidance varies with athlete context; the page’s presets are not an assessment of that context.

Sources and method references

• Australian Institute of Sport: protein needs and individual context

Using the estimate

Use the multipliers to compare transparent protein scenarios. Choose an actual eating plan using more context than weight and a goal label.