Hash — the pressed resin of the cannabis plant — is nearly pure trichomes, so it contains almost no carbohydrates. Yet nutrition labels on infused hash, charas, and mixed resin products often report carbs per tiny serving, leaving you to do the math before you can compare products or plan a diet. This calculator converts any serving size into the standard carbs per 100 g figure used on food labels worldwide.
It is built for medical cannabis patients tracking macros, edible makers who need consistent per-portion numbers, and anyone curious about how their favorite hash stacks up nutritionally. Select a common hash type to load typical values, or enter your own label data. An optional dose field scales the result down to the exact amount you plan to consume, so you always know exactly what you're getting.
🧮 Hash Carbs per 100 g Calculator
Convert any hash serving size to the standard per-100 g figure, then scale it to your own dose.
How to Use This Tool
This calculator works in three simple steps. First, pick a hash type or choose "Custom" so the serving weight and carb fields refer to your own product. Second, enter the weight of the portion whose nutrition you know, along with the number of grams of carbs in that portion — this is usually printed on the label or reported by the producer. Third, optionally enter the size of the dose you actually plan to consume, and the calculator will scale the result down from the per-100 g reference to your real serving.
- Select a hash type to load typical values, or choose Custom.
- Enter serving weight in grams and the carbs measured in that serving.
- Add a dose size in grams if you want per-dose carbs.
- Press Calculate, then read the per-100 g result and the step-by-step breakdown.
Formula Explained
Nutrition labels express carbohydrates per 100 g (or per serving, depending on the country). When a hash product is sold with a per-serving nutrition panel, the serving is often a fraction of a gram or a single gram, so the per-100 g figure is rarely stated. The conversion is a simple proportional scaling:
From the per-100 g value, the per-gram figure is obtained by dividing by 100, and the per-dose figure is obtained by multiplying the per-gram value by your dose weight. Because cannabis resin itself is essentially carbohydrate-free, any carbs come from added ingredients — honey, sugar-based flavor coatings, or plant matter trapped during hand-pressing.
Worked Examples
Example 1 — Infused hash label. Your infused hash label says a 1 g serving contains 0.08 g of carbs. The calculator divides 0.08 by 1, then multiplies by 100, giving 8 g per 100 g. For a 0.25 g dose, it multiplies 0.08 by 0.25, giving 0.02 g of carbs per dose — negligible even on strict nutrition plans.
Example 2 — Bulk batch conversion. You pressed 12 g of hash and the lab report says the whole batch contains 1.2 g of carbohydrates. Enter 12 g as the serving weight and 1.2 g as the carbs in that serving. The result is 10 g per 100 g. If you plan a 0.5 g serving, that's 0.05 g of carbs per serving.
Reference Data: Typical Carbs per 100 g
Values below are typical ranges reported by producers and labs; always use the number from your own product when available.
| Hash type | Carbs (g/100g) | What it is |
|---|---|---|
| Dry sift / kief | 0 | Pure resin heads, no plant matter |
| Bubble hash | 0 | Ice-water extraction, very pure |
| Full melt | 0.2–1 | High purity, trace plant residues |
| Charas / hand-pressed | 1–3 | Hand-rubbed trichomes, some leaf residue |
| Infused hash | 5–20 | Added honey, sugar, or sweet terpenes |
Frequently Asked Questions
Does hash actually contain carbohydrates?
Pure cannabis resin is essentially free of carbohydrates. Detectable carbs in a lab test usually come from added sweeteners, plant matter, or contamination during handling. This is why most unadulterated hash samples report 0 g per 100 g.
Why do labels show carbs per serving instead of per 100 g?
Small-batch producers are often not required to follow full nutrition labeling rules, and per-serving values are cheaper to produce. The per-100 g reference is the standard way to compare products, which is exactly what this calculator converts to.
Do I need to count carbs in hash for keto?
For plain hash, no — the value is effectively 0 g. For infused or flavored hash, check the label. Even at 20 g per 100 g, a typical 0.1–0.3 g dose contributes far less than 1 g of carbs, so it's unlikely to derail a low-carb plan.
Why does my product's number differ from the presets?
Presets are typical values, not guarantees. Cannabis is a plant, and every batch differs in trichome purity, pressing technique, and added ingredients. When in doubt, use the Custom option with your own lab or label data.
Additional Resources
Want to go deeper? These sources cover hash production, composition, and cannabis research more broadly.