<1 %
Calcium is below the 15 % “source of” level in tonic water, so no function line applies.
How many calories are in tonic water?
55kcal
in a 250 g glass
22 kcal per 100 g.
Source: UK CoFID 2021, record 17-736. Checked 5 October 2026.
0 gFat
0 gProtein
0 gFibre
<1 %Daily calcium
What’s in a 250 g glass
More than half of a glass is water. The rest is 14.8 g carbohydrate.
- 14.8 gCarbohydrate
- 235 gWater
Below average for drinks
Tonic water is 22 kcal per 100 g. The 61 drinks in this database average 69.2.
Tonic water22
Drinks average69.2
Low in fat
0 g of fat per 100 g; the UK “low fat” line is 1.5 g.
Fat, per glass0 g
Saturates, per glass0 g
Vitamins and minerals in tonic water
No vitamin or mineral in tonic water reaches the “source of” level; calcium is the nearest at <1 %.
Only a trace
- Chloride
- Iron
- Zinc
- Copper
- Manganese
- Selenium
- Iodine
None recorded
- Vitamin A
- Vitamin D
- Vitamin E
- Vitamin C
- Thiamin
- Riboflavin
- Niacin
- Vitamin B6
- Folate
- Vitamin B12
- Biotin
- Pantothenic acid
- Potassium
- Phosphorus
- Magnesium
Show all 16 with amounts
Calcium2.5 mg, <1 %
Vitamin Anone recorded
Vitamin Dnone recorded
Vitamin Enone recorded
Vitamin Cnone recorded
Thiamin (vitamin B1)none recorded
Riboflavin (vitamin B2)none recorded
Niacin (vitamin B3)none recorded
Vitamin B6none recorded
Folatenone recorded
Vitamin B12none recorded
Biotinnone recorded
Pantothenic acid (vitamin B5)none recorded
Potassiumnone recorded
Phosphorusnone recorded
Magnesiumnone recorded
Badges use the UK legal thresholds per 100 g: 7.5 % of the reference intake for “source of”, 15 % for “high in”. A trace is shown as “trace” and never counts.
What tonic water doesn’t give you. And where to find it.
No recorded vitamin D, vitamin C or zinc.
Vitamin D
0mgin tonic water
Find it inBloater, grilled500 % per 100 g
Vitamin C
0mgin tonic water
Find it inCherries, West Indian2150 % per 100 g
Zinc
Tracein tonic water
Find it inOysters, raw592 % per 100 g
100 mgVitamin C, 125 %
0.075 mgSelenium, 136 %
0.00125 mgVitamin D, 25 %
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Free standard delivery to UK addresses. Royal Mail 48 tracked, usually 2 to 3 working days.
Made in Cambridgeshire
Made in the UK since 1998, with every nutrient and its declared amount listed on the label.
Tonic water against other drinks
Per 100 g, lime juice (fresh) has the most calcium in this comparison, followed by orange juice (chilled).
9mg
8mg
7mg
6mg
6mg
1mg
All values per 100 g, from the same dataset. Differences are against tonic water.
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Questions about tonic water
Four questions chosen by the facts above, so every food answers differently.
How many calories are in a portion of tonic water?
A typical portion (250 ml, a glass) gives 55 kcal. Per 100 g the figure is 22 kcal.
Which vitamins and minerals does tonic water have most of?
By share of the daily reference intake: calcium (1 mg, 0.1 %), vitamin A (0 mg, 0 %) and vitamin D (0 mg, 0 %) per 100 g.
Is tonic water high in salt?
No. Salt is 0.01 g per 100 g, which is very low under UK rules.
What counts as a portion of tonic water?
This page uses 250 ml, a glass, the usual UK portion for drinks. Every “per portion” figure is the per-100 g value scaled to that weight.
How these numbers were made
Every figure comes from the UK Composition of Foods Integrated Dataset (CoFID), 2021 edition, record 17-736, Tonic water, published by Public Health England under the Open Government Licence v3.0. Main data references: Cutrufelli and Matthews (1986) Composition of foods: beverages, raw, processed and prepared. Agriculture Handbook No. 8-14, UK Department of Agriculture, Washington DC; and industry data, 2013. Values are per 100 g of the edible part; a glass is 250 g, a glass, the usual UK portion for drinks. Reference intakes follow Regulation (EU) 1169/2011 Annex XIII as retained in GB law; “source of”, “high in” and “low” follow Regulation (EC) 1924/2006, assessed per 100 g (per 100 ml thresholds for drinks). Function lines are the authorised wording from the GB register of nutrition and health claims, credited to the nutrient. Energy is rounded to the whole kcal and kJ; other amounts to one decimal, or two below 1. A trace is shown as “trace” and never gets a figure or a badge; a nutrient never analysed is left off the page. We start from the dataset’s 2,887 records and keep 2,322: records weighed with bone, shell or skin, alcoholic drinks, infant foods, brand-named products, records with fewer than eight measured vitamins and minerals and near-identical variants are left out. Group context uses the 61 drinks kept from the dataset; a rank counts only the foods with a measured figure for that nutrient. Food images are illustrations from Ingredient Atlas, released under CC0; they show the food, not the measured sample. Checked 5 October 2026. Contains public sector information licensed under the Open Government Licence v3.0.
More drinks
From the same group, with calories per 100 g.
