Homemade Chocolate Bonbons Calculator
Calculate exactly how many grams of couverture chocolate you need for homemade bonbons. Enter piece count, weight per bonbon, filling %, and tempering waste — get instant result plus a reference table by mold type.
- Data verified · June 2026
- Edited by Martín Rodríguez
- Formula verified by automated tests
- Private — runs on your device
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How to use this calculator
Follow this tool’s steps, then review its formula, assumptions, and limits below.
Every time you melt and temper chocolate you lose 5–10% to the bowl, marble slab, or scraper — chocolate that sticks to surfaces and is never deposited into the mold. Across 80 or 100 bonbons, that margin determines whether you buy one block or two.
This calculator uses the real professional formula: Couverture (g) = (Shell weight per bonbon × Number of bonbons) ÷ (1 − Tempering waste %), where shell weight = total piece weight × (1 − filling fraction). Enter your piece count, bonbon weight, filling percentage, and estimated tempering waste to get the exact grams to weigh before you start tempering — plus a purchase recommendation rounded up to the nearest 50 g.
When to use this calculator
- Scaling a gift box recipe from 24 to 96 bonbons for the holidays without wasting expensive couverture chocolate
- Calculating the exact grams of dark, milk, or white couverture to purchase before a bonbon-making class or workshop
- Estimating ingredient cost per bonbon when pricing homemade chocolates for a bake sale or small home business
- Planning solid truffle production: 100 solid 15 g dark chocolate truffles with 7% waste requires 1,613 g — just under two 1 kg blocks
Tempering Waste & Filling Reference by Skill Level and Mold Type
| Scenario | Filling % | Tempering Waste % | Shell per 20 g bonbon (g) | Couverture needed per 50 pcs (g) |
|---|---|---|---|---|
| Solid bonbon, professional | 0% | 4–6% | 20 g | 1,042–1,042 g → 1,042–1,250 g* |
| Solid bonbon, home kitchen | 0% | 6–8% | 20 g | 1,064–1,087 g |
| Filled (ganache/caramel), professional | 35–45% | 4–6% | 11–13 g | 573–677 g |
| Filled (ganache/caramel), home kitchen | 35–45% | 6–8% | 11–13 g | 598–707 g |
| Liqueur/fluid filling, professional | 45–55% | 4–6% | 9–11 g | 469–573 g |
| First attempt / white chocolate | 0–45% | 8–10% | 11–20 g | 611–1,111 g |
Fuente: Cálculos derivados de la fórmula de la calculadora (Shell g = bonbon weight × (1 − filling%); Couverture = shell × pcs ÷ (1 − waste%)). Rangos de merma y relleno según École Chocolat y Valrhona Professional (ver fuentes de la calc). *Redondear siempre al bloque de 50 g más cercano por encima.
How it works
How It's Calculated
The formula accounts for four variables: the number of pieces, the total weight of each bonbon, the filling fraction (if not solid), and the unavoidable tempering waste.
Shell chocolate per bonbon (g) = Bonbon weight (g) × (1 − Filling % ÷ 100)
Gross couverture to weigh (g) = (Shell chocolate per bonbon × Number of bonbons)
÷ (1 − Tempering waste % ÷ 100)Why divide by (1 − waste)?
Tempering requires working with a larger mass than what actually ends up in the molds. Chocolate sticks to the bowl, marble slab, and scraper — this is the tempering waste. If you need exactly 500 g deposited into molds and your waste is 6%, you must start with 500 ÷ 0.94 = 532 g before tempering so that after losing 6%, you still have 500 g of usable chocolate.
Typical filling percentages:
Typical tempering waste:
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Reference Table by Mold Type
| Mold Type | Weight per Piece | Shell (0% filling) | Shell (45% filling) | Pieces per kg shell |
|---|---|---|---|---|
| Small sphere (ø 28 mm) | 10–13 g | 10–13 g | 5.5–7 g | 76–182 pcs |
| Medium sphere (ø 35 mm) | 15–20 g | 15–20 g | 8–11 g | 50–125 pcs |
| Standard rectangular | 18–22 g | 18–22 g | 10–12 g | 45–100 pcs |
| Cup / tulip | 20–25 g | 20–25 g | 11–14 g | 40–91 pcs |
| Solid round (ø 30 mm) | 14–18 g | 14–18 g | — | 56–71 pcs |
Averages for 52–70% cacao couverture. White chocolate may yield 3–5% less per batch.
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Worked Examples
Case 1: Gift Box — 24 Filled Shell Bonbons
Case 2: Easter Party — 100 Solid Milk Chocolate Truffles
Case 3: How Many Bonbons from 500 g?
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Common Mistakes
1. Ignoring tempering waste. If you melt exactly 500 g, you will not get 500 g into molds — you'll fall 30–50 g short. Always add 6–10% extra.
2. Confusing couverture with compound chocolate. Couverture (≥31% cocoa butter per FDA 21 CFR §163) must be tempered. Compound chocolate uses vegetable fat and skips tempering, but gives a softer, less glossy result.
3. Using total bonbon weight instead of shell-only weight. If your recipe gives a total piece weight of 20 g with 45% filling, the chocolate shell is only 11 g — not 20 g.
4. Measuring by volume instead of weight. Always use a kitchen scale. A cup of chopped chocolate vs. callets vs. a grated block can vary 30% in weight for the same volume.
5. Skipping the second chocolate coat. Hand-dipped truffles often get two coats (~5–8 g total shell per dip). Forgetting the second coat causes routine chocolate shortages mid-batch.
Example: 50 ganache bonbons at 18 g each
Frequently asked questions
How does the calculator compute the chocolate amount?
What is tempering waste and why does it matter?
What is the difference between couverture and compound chocolate for bonbons?
How many grams of chocolate does a typical filled bonbon shell use?
Can I use milk or white chocolate instead of dark, and does it change the amounts?
How do I calculate how many bonbons I can make from a given amount of chocolate?
How do I scale this for a large batch, like 200 bonbons?
Does the type of filling (ganache, caramel, praline) affect the chocolate calculation?
Sources & references
Methodology & trust
Cooking calculator with its formula verified automatically against FDA 21 CFR Part 163 — Cacao Products (Standards of Identity for Chocolate), per our editorial policy and methodology.
Updated: June 2026. Parameters are verified periodically against the cited sources.
Calculations run 100% in your browser. We do not store or transmit your data.
Indicative results. For critical decisions, consult a professional.
Rodríguez, M. (2026). Homemade Chocolate Bonbons Calculator. Hacé Cuentas. https://hacecuentas.com/en/homemade-chocolate-bonbons-calculator
Content licensed under CC-BY 4.0 — reuse it citing the source with a link to Hacé Cuentas.