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Health & fitness

Sugar calculator

Convert grams of sugar to teaspoons and calories.

Your result

Complete the fields and calculate.

Calculation method and formula

Sugar amount [g] ÷ 4

Understand the inputs

Sugar amount
Unit: g. Use a measured value or your own assumption.

Assumptions and limitations

Fixed factors are used: protein/carbohydrate 4, fat 9 and alcohol 7 kcal/g. Real foods contain other components; salt is approximated from sodium using 2.5.

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

Worked example

Illustrative values. Replace them with your own inputs for your calculation.

Sugar amount
40 g
Example result10 tsp

That is about 160 kcal.

Model revision: October 17, 2026 · How CleverCalc works

FAQ

Frequently asked questions

How does Sugar calculator work?+

Sugar amount [g] ÷ 4. Fixed factors are used: protein/carbohydrate 4, fat 9 and alcohol 7 kcal/g. Real foods contain other components; salt is approximated from sodium using 2.5.

What assumptions should I consider for this result?+

Fixed factors are used: protein/carbohydrate 4, fat 9 and alcohol 7 kcal/g. Real foods contain other components; salt is approximated from sodium using 2.5. The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

How accurate is the result?+

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation. Health values are general information, not a diagnosis or personal treatment recommendation.

Is this calculator free?+

Yes. Calculations and PDF export work without an account or registration.

What happens to my inputs?+

Calculations run in your browser. Results are saved locally only when you add them to My results; favourites and history are also local. Shared links contain your values. The currency tool requests the selected currencies from its rate provider without sending your amount.

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