NALKO
Free online fitness tools

Free fitness calculators built for the next action

Estimate strength, training loads, FFMI, nutrition needs or body-composition markers without creating an account. Every tool explains its method and limits.

Free, no credit card 2 tools available FR · EN · ES
Services

Choose what you want to improve

Eight focused free calculators with an instant result and optional saving in Nalko.

Tool available

Free strength calculators for planning and measuring

Estimate a one-rep max, turn RPE into a load, calculate FFMI or find the plates for your barbell. Treat every output as a starting point to verify in training.

  • One intent per calculator
  • Visible assumptions
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Tool available

Free nutrition calculators, from calorie needs to body composition

Estimate calories, protein, adult BMI or body fat with a calculator dedicated to each question. Every result explains its method and limitations.

  • Concrete activity inputs
  • Calories and macros together
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Why these tools are different

Why these tools are different

Value before sign-in

The full result is shown before authentication. Your account is only used to keep what you calculated.

Visible assumptions

Every tool states its formula, units, method version and where the estimate becomes less reliable.

A practical handoff

A saved estimate becomes a starting point for nutrition or progress tracking instead of a dead-end number.

From search to a useful action

From search to a useful action

  1. 1. Calculate

    Enter only the required data and get a complete result for free.

  2. 2. Understand

    Review the breakdown, ranges and limits before acting.

  3. 3. Save if useful

    Create an account only when you want to retrieve and compare the result.

FAQ

Frequently asked questions

Are Nalko fitness calculators really free?

Yes. Calculation and results work without an account. A free account is required only when you choose to save a result.

How does Nalko choose which tools to offer?

Every service must answer a distinct intent, use a verifiable method and connect to a tracking feature that actually exists in Nalko.

Do body data appear in the URL?

No. Weight, age, calories and performance values are never added to the page address.