Free Tools
Nutrition calculators, minus the fluff
Simple, evidence-based tools that give you a number you can actually use — no sign-up, no email, no upsell. Then the app makes hitting that number effortless.
Calorie Deficit Calculator
How many calories to lose weight
Get your maintenance calories (TDEE) via the Mifflin-St Jeor equation, plus a daily target for the pace you choose.
Open calculator
Protein Calculator
How much protein per day
A daily protein target in grams for your weight and goal — general health, fat loss, or building muscle — with per-meal guidance.
Open calculator
kJ to Calories Converter
Kilojoules to calories, and back
Convert Australian label kilojoules to calories (or the reverse) instantly, with a quick table of common values like 8,700 kJ.
Open converter
The number is the easy part.
Rekkon makes hitting it effortless — just say what you ate, and it keeps the running tally. Seven days free.
Try Rekkon free