Calorie and nutrition tools
Six calculators built on the same rules as the Calsa app: the same equations, the same safe minimum, the same sources.
1,520kcal a day to lose 0.5 kg a week
Calorie Calculator
Your daily calories to maintain, lose or gain weight, with a safe minimum built in.
Open92 · 51 · 174g protein · fat · carbs
Macro Calculator
Protein, fat and carbs in grams for your calorie goal.
Open92 gprotein a day at 175 cm, 120 kg
Protein Calculator
How much protein a day for your height and weight.
Open50.4–67.7kg, the usual range at 165 cm
Ideal Weight Calculator
The usual weight range for your height, in kg or lb, for women and men.
Open390kcal for 10,000 steps at 70 kg
Steps to Calories
Calories used walking, from your step count and weight.
Open1,000 kJ = 239Calories on an Australian label
kJ to Calories Converter
Kilojoules to Calories and back, for Australian food labels.
Open
Where the numbers come fromNASEM 2023 energy equationsA 1,200 or 1,500 calorie minimumUS dietary guidance 2025–2030 for proteinWHO adult BMI rangeUSDA FoodData Central2024 Compendium of Physical Activities
