Sugar Intake Calculator
Use this sugar intake calculator to track your daily added sugar against WHO and AHA reference limits.
Updated September 18, 2026
Calculated instantly in your browser — nothing is sent to or stored on our servers. Your log resets when you leave this page.
Medical Disclaimer: This calculator provides a general estimate based on established research and is for educational purposes only, not a substitute for medical advice. Individual results can vary based on health conditions, so consult a qualified healthcare professional or registered dietitian before making significant changes to your diet, exercise, or health routine. Read our full Medical Disclaimer.
How Added Sugar Intake Is Calculated
Added sugar is sugar and syrups added during food processing or preparation, distinct from the natural sugars in whole fruit, vegetables, or plain dairy. Two major health bodies have each published guidance on it, using different methods, which is why this calculator tracks against both rather than picking one silently¹².
What This Calculator Measures
This tracks your logged added sugar intake against two different reference frameworks at once, WHO's percentage-of-calories limit and AHA's sex-specific fixed gram target, clearly labeled as two different approaches, not merged into one number.
The Formula
WHO: added sugars under 10% of total calories, with an ideal target under 5%, converted to grams using 4 kcal per gram¹.
AHA: a fixed calorie-based limit by sex, no more than 100 kcal/day (about 25g) for most women, 150 kcal/day (about 36g) for most men².
How This Calculator Computes Your Result
Log added-sugar sources using the quick-select dropdown or manual entry. We sum your running daily total against both frameworks, showing where you stand relative to WHO's percentage-based limit and AHA's fixed gram target side by side.
Why Added Sugar Specifically, and Why It's Tracked This Closely
This isn't guidance based on general dietary caution, it's tied to a specific, measured outcome. A large cohort study following US adults for over a decade found that people getting 25% or more of their daily calories from added sugar had roughly double the cardiovascular disease mortality risk of those getting less than 10%, and the relationship held even after accounting for other risk factors³.
That's a meaningfully larger effect than many people expect from something as ordinary as added sugar, and it's the direct evidence behind why both WHO and AHA set their limits well below typical intake levels rather than treating added sugar as a minor concern.
A Note on Accuracy
This tracks added sugars, not naturally occurring sugars in whole fruit, vegetables, or plain dairy, which are not the target of either guideline and don't need to be counted the same way. An older Institute of Medicine upper limit of 25% of calories exists and was incorporated into earlier (2010) Dietary Guidelines, it's considerably more permissive than current WHO/AHA guidance and is no longer the operative recommendation.
Frequently Asked Questions
How much added sugar should I eat each day?
Most healthy adults do well with added sugars under about 10% of total daily calories, ideally under 5%¹, though AHA's fixed target (roughly 25g for most women, 36g for most men) is the more commonly cited practical benchmark².
Why do WHO and AHA use different methods?
WHO frames its guidance as a percentage of total calories, which scales naturally with how much someone eats overall¹. AHA uses a fixed gram target by sex instead, simpler to apply without doing calorie math². Neither is wrong, they're just structured differently.
Does added sugar intake really affect health outcomes this much?
Yes. A large long-term cohort study found people getting a quarter or more of their calories from added sugar had roughly double the cardiovascular mortality risk of those getting under 10%³, a substantially larger effect than most people assume.
Do fruit and dairy sugars count toward this limit?
No. This tracks added sugars specifically, not the natural sugars already present in whole fruit, vegetables, or plain dairy, which aren't the target of either guideline.
Sources
Guideline: Sugars Intake for Adults and Children, World Health Organization, 2015
Dietary Guidance to Improve Cardiovascular Health: A Scientific Statement From the American Heart Association, American Heart Association, Circulation, 2021
Added Sugar Intake and Cardiovascular Diseases Mortality Among US Adults, Yang et al., JAMA Internal Medicine, 2014
Sugar Intake Calculator
Use this sugar intake calculator to track your daily added sugar against WHO and AHA reference limits.
Updated September 18, 2026
Calculated instantly in your browser — nothing is sent to or stored on our servers. Your log resets when you leave this page.
Medical Disclaimer: This calculator provides a general estimate based on established research and is for educational purposes only, not a substitute for medical advice. Individual results can vary based on health conditions, so consult a qualified healthcare professional or registered dietitian before making significant changes to your diet, exercise, or health routine. Read our full Medical Disclaimer.
How Added Sugar Intake Is Calculated
Added sugar is sugar and syrups added during food processing or preparation, distinct from the natural sugars in whole fruit, vegetables, or plain dairy. Two major health bodies have each published guidance on it, using different methods, which is why this calculator tracks against both rather than picking one silently¹².
What This Calculator Measures
This tracks your logged added sugar intake against two different reference frameworks at once, WHO's percentage-of-calories limit and AHA's sex-specific fixed gram target, clearly labeled as two different approaches, not merged into one number.
The Formula
WHO: added sugars under 10% of total calories, with an ideal target under 5%, converted to grams using 4 kcal per gram¹.
AHA: a fixed calorie-based limit by sex, no more than 100 kcal/day (about 25g) for most women, 150 kcal/day (about 36g) for most men².
How This Calculator Computes Your Result
Log added-sugar sources using the quick-select dropdown or manual entry. We sum your running daily total against both frameworks, showing where you stand relative to WHO's percentage-based limit and AHA's fixed gram target side by side.
Why Added Sugar Specifically, and Why It's Tracked This Closely
This isn't guidance based on general dietary caution, it's tied to a specific, measured outcome. A large cohort study following US adults for over a decade found that people getting 25% or more of their daily calories from added sugar had roughly double the cardiovascular disease mortality risk of those getting less than 10%, and the relationship held even after accounting for other risk factors³.
That's a meaningfully larger effect than many people expect from something as ordinary as added sugar, and it's the direct evidence behind why both WHO and AHA set their limits well below typical intake levels rather than treating added sugar as a minor concern.
A Note on Accuracy
This tracks added sugars, not naturally occurring sugars in whole fruit, vegetables, or plain dairy, which are not the target of either guideline and don't need to be counted the same way. An older Institute of Medicine upper limit of 25% of calories exists and was incorporated into earlier (2010) Dietary Guidelines, it's considerably more permissive than current WHO/AHA guidance and is no longer the operative recommendation.
Frequently Asked Questions
How much added sugar should I eat each day?
Most healthy adults do well with added sugars under about 10% of total daily calories, ideally under 5%¹, though AHA's fixed target (roughly 25g for most women, 36g for most men) is the more commonly cited practical benchmark².
Why do WHO and AHA use different methods?
WHO frames its guidance as a percentage of total calories, which scales naturally with how much someone eats overall¹. AHA uses a fixed gram target by sex instead, simpler to apply without doing calorie math². Neither is wrong, they're just structured differently.
Does added sugar intake really affect health outcomes this much?
Yes. A large long-term cohort study found people getting a quarter or more of their calories from added sugar had roughly double the cardiovascular mortality risk of those getting under 10%³, a substantially larger effect than most people assume.
Do fruit and dairy sugars count toward this limit?
No. This tracks added sugars specifically, not the natural sugars already present in whole fruit, vegetables, or plain dairy, which aren't the target of either guideline.
Sources
Guideline: Sugars Intake for Adults and Children, World Health Organization, 2015
Dietary Guidance to Improve Cardiovascular Health: A Scientific Statement From the American Heart Association, American Heart Association, Circulation, 2021
Added Sugar Intake and Cardiovascular Diseases Mortality Among US Adults, Yang et al., JAMA Internal Medicine, 2014
Sugar Intake Calculator
Use this sugar intake calculator to track your daily added sugar against WHO and AHA reference limits.
Updated September 18, 2026
Calculated instantly in your browser — nothing is sent to or stored on our servers. Your log resets when you leave this page.
Medical Disclaimer: This calculator provides a general estimate based on established research and is for educational purposes only, not a substitute for medical advice. Individual results can vary based on health conditions, so consult a qualified healthcare professional or registered dietitian before making significant changes to your diet, exercise, or health routine. Read our full Medical Disclaimer.
How Added Sugar Intake Is Calculated
Added sugar is sugar and syrups added during food processing or preparation, distinct from the natural sugars in whole fruit, vegetables, or plain dairy. Two major health bodies have each published guidance on it, using different methods, which is why this calculator tracks against both rather than picking one silently¹².
What This Calculator Measures
This tracks your logged added sugar intake against two different reference frameworks at once, WHO's percentage-of-calories limit and AHA's sex-specific fixed gram target, clearly labeled as two different approaches, not merged into one number.
The Formula
WHO: added sugars under 10% of total calories, with an ideal target under 5%, converted to grams using 4 kcal per gram¹.
AHA: a fixed calorie-based limit by sex, no more than 100 kcal/day (about 25g) for most women, 150 kcal/day (about 36g) for most men².
How This Calculator Computes Your Result
Log added-sugar sources using the quick-select dropdown or manual entry. We sum your running daily total against both frameworks, showing where you stand relative to WHO's percentage-based limit and AHA's fixed gram target side by side.
Why Added Sugar Specifically, and Why It's Tracked This Closely
This isn't guidance based on general dietary caution, it's tied to a specific, measured outcome. A large cohort study following US adults for over a decade found that people getting 25% or more of their daily calories from added sugar had roughly double the cardiovascular disease mortality risk of those getting less than 10%, and the relationship held even after accounting for other risk factors³.
That's a meaningfully larger effect than many people expect from something as ordinary as added sugar, and it's the direct evidence behind why both WHO and AHA set their limits well below typical intake levels rather than treating added sugar as a minor concern.
A Note on Accuracy
This tracks added sugars, not naturally occurring sugars in whole fruit, vegetables, or plain dairy, which are not the target of either guideline and don't need to be counted the same way. An older Institute of Medicine upper limit of 25% of calories exists and was incorporated into earlier (2010) Dietary Guidelines, it's considerably more permissive than current WHO/AHA guidance and is no longer the operative recommendation.
Frequently Asked Questions
How much added sugar should I eat each day?
Most healthy adults do well with added sugars under about 10% of total daily calories, ideally under 5%¹, though AHA's fixed target (roughly 25g for most women, 36g for most men) is the more commonly cited practical benchmark².
Why do WHO and AHA use different methods?
WHO frames its guidance as a percentage of total calories, which scales naturally with how much someone eats overall¹. AHA uses a fixed gram target by sex instead, simpler to apply without doing calorie math². Neither is wrong, they're just structured differently.
Does added sugar intake really affect health outcomes this much?
Yes. A large long-term cohort study found people getting a quarter or more of their calories from added sugar had roughly double the cardiovascular mortality risk of those getting under 10%³, a substantially larger effect than most people assume.
Do fruit and dairy sugars count toward this limit?
No. This tracks added sugars specifically, not the natural sugars already present in whole fruit, vegetables, or plain dairy, which aren't the target of either guideline.
Sources
Guideline: Sugars Intake for Adults and Children, World Health Organization, 2015
Dietary Guidance to Improve Cardiovascular Health: A Scientific Statement From the American Heart Association, American Heart Association, Circulation, 2021
Added Sugar Intake and Cardiovascular Diseases Mortality Among US Adults, Yang et al., JAMA Internal Medicine, 2014