Vitasor
AI PlanStart Assessment
Weight Tool · Calculator

Calorie Needs Calculator

Estimate maintenance calories and a practical intake range based on body details, activity, and goal.

Explore Weight Tools
Takes about 3 minutes · No account requiredPrivate by default · Educational guidance
What this tool looks at

What shapes the estimate

The calculator separates formula-based starting estimates from the real-world adjustment process.

2,250 kcal
Example maintenance

Resting energy estimate

Based on body details and a standard equation.

Activity level

Daily movement and exercise adjust the estimate.

Goal

Maintenance, fat loss, or gain changes the suggested range.

Progress feedback

Actual weight and performance trends determine later adjustments.

Your final result will reflect your own answers and context.
Simple process

How it works

Complete three focused steps to receive a clear, educational result and a practical next action.

01

Enter body and activity details

Add age, sex, height, weight, and typical activity.

02

Choose your goal and pace

Select maintenance, loss, or gain and a reasonable pace.

03

Review calorie ranges and adjustment rules

See maintenance, target range, and when to reassess.

Your result

A starting range—not an exact metabolic measurement

The result includes uncertainty and a review process so users know how to refine the estimate.

2,250 kcal
Example maintenance

Estimated maintenance calories

Review a concise, personalized output based on the information you provide.

Goal-specific calorie range

Receive a usable range rather than a single rigid target.

Suggested review period

Review a concise, personalized output based on the information you provide.

Adjustment and safety guidance

Review a concise, personalized output based on the information you provide.

Educational use only

This tool is for general wellness education only. It does not diagnose conditions or replace medical advice. Read the full disclaimer