Explore a simplified calorie estimate using your measurements and a weight goal. For adults only—not a personalised eating plan.
An estimate, not a prescription
Enter your details to see resting energy, estimated maintenance, and how your chosen timeline changes the model.
How this tool works Method, sources & assumptions
Developed by Suraj Pokhrel. Calculations are estimates; the method and assumptions explain how to interpret them.
Method and limitations
The resting energy estimate uses the Mifflin–St Jeor equation and an activity multiplier. The weight-change calculation uses a simplified 7,700 kcal/kg model; actual weight change is not linear. This adult estimate is not a clinical assessment and has not been medically reviewed. It is not designed for children, pregnancy, or medical conditions. Discuss a suitable goal with a qualified clinician or dietitian.
About this calorie estimate
The tool uses the Mifflin–St Jeor equation to estimate resting energy use, applies an activity multiplier, then adds a simplified weight-change calculation.
Limits of the model
The calculation assumes 7,700 kcal per kilogram of weight change. Real weight change is not linear, and this model cannot establish whether a target weight or deadline is suitable for you.
This is an educational adult calculator, not a personalised eating plan. It has not been medically reviewed and is not designed for children, pregnancy or medical conditions. Discuss a suitable goal with a qualified clinician or dietitian before acting on the estimate.