About
Making a good smoothie is easy. Making the same good smoothie again — at the right size, with the macros you wanted, at a price you can predict — is where the guessing starts.
That’s the gap this site fills. Free calculators for the math that comes up over and over when you blend: ratios, scaling, nutrition, sugar, and cost. No account required. Nothing you type is stored on a server. Just a number and an explanation of where it came from.
Who builds it
Smoothie Calculator is built and maintained by Sunit Vaswani, working solo. It is not a media company and there is no content team — if something on the site is wrong, one person is responsible for fixing it, and you can reach him directly.
The tools
- Ratio Calculator — liquid, frozen fruit, base and thickener for the texture you actually want
- Calorie & Nutrition Calculator — calories and macros for any blend, at any number of servings
- Substitution Calculator — swaps ranked by how well they hold the texture
- Sugar Calculator — how much of the sugar is fruit and how much you added
- Cost Calculator — what a glass actually costs to make
- Protein Powder Calculator — scoops against your bodyweight and your goal
- Smoothie Bowl Calorie Calculator — the bowl plus everything you put on top
- Freezer Pack Calculator — batching a week of packs from one shop
- Blender Capacity Calculator — whether the jar you own can hold the batch you planned
New tools get added when enough people ask for the same calculation. If you keep doing something by hand, let us know.
Where the numbers come from
One ingredient database sits behind everything. Each ingredient carries nutrition per 100 g — standard published reference values, of the kind used across nutrition labelling — plus the weight of one household measure, so any serving can be derived rather than looked up. Every calculator, guide and recipe on the site reads that same file, which is why the ratio calculator, the calorie calculator and a recipe page can never disagree with each other.
Two consequences worth knowing. Figures are estimates: brands vary, fruit varies, and how full you pack a cup varies more than either. And where a chain publishes its own nutrition data, we quote it as theirs, with a link and the date we read it — never mixed in with our own calculated figures.
Every calculation runs in your browser. Nothing you enter goes anywhere.
Who it’s for
Anyone who makes smoothies with intent — for training, health, budget, or just consistency — and would rather not redo the arithmetic every time. Beginners welcome. People who already track everything also welcome.