Formulate
Calculate fragrance and base amounts using your vessel, fill, density, and supplier limits.
waft
REED DIFFUSER FORMULATION, SIMPLIFIED
A precise instrument for reed diffuser makers.
Build accurate formulas, estimate diffuser life, save recipes, scale production, and understand the business behind every blend.
No account required
Core calculator stays free
One-time Pro unlock
Formula
Precise by weight or volume
Life estimate
Plan reeds and lifespan
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BUILT FOR THE ACTUAL MAKING PROCESS
From one vessel to a complete production plan.
Waft brings reed diffuser formulation, lifespan planning, saved recipes, production scaling, costing, and pricing into one calm workspace—without turning your craft into a spreadsheet.
Organize
Save successful formulas and keep the details you need for repeatable production.
Grow
Scale batches, build shopping lists, understand costs, and set confident prices.
INSTANT FORMULA OUTPUT
See the blend before you pour it.
Enter the vessel, fill, base, fragrance density, and load. Waft returns the exact fragrance and base amounts by weight and volume, plus a finished-blend summary.
- Metric and US customary units
- Weight- or volume-based formulation
- Supplier maximum references
- Built-in life estimates
SAVED RECIPES
Keep every successful formula ready to reuse.
Return to the blends that worked, review their formula and expected lifespan, and move directly into a production batch when you are ready.
Private by design.
Your recipes and workspace details stay on your device. No account is required.
WAFT PRO
Your seller toolkit, built into the same workspace.
Move beyond a single formula when you are ready. Waft Pro adds the tools that help makers produce, cost, and price with clarity.
Batch calculator
Scale a saved recipe and account for transfer loss or overage.
Shopping list
Total fragrance, base, vessels, and reeds before production begins.
Cost engine
Calculate unit COGS with optional packaging, overhead, and labor.
Pricing tools
Compare markup, margin, wholesale, and marketplace pricing.
PRODUCTION SCALING
Turn one saved recipe into a complete batch plan.
Choose a formula, enter the number of units and overage, and get a production-ready shopping list for fragrance, base, vessels, reeds, and finished liquid.
1saved formula
12planned units
1clear shopping list
LIFESPAN PLANNING
Estimate. Test. Calibrate.
Use finished liquid, reed count, and evaporation rate to plan an expected lifespan. Once a real diffuser runs dry, Waft Pro can back-solve a personalized rate for future estimates.
Estimate
Start with a planning reference before production.
Observe
Record the actual lifespan of your real diffuser.
Calibrate
Save a more useful default evaporation rate.
START FREE. GROW WHEN YOU NEED TO.
The core math stays available.
Waft is useful before you purchase anything. Pro is a one-time unlock for the business and calibration tools.
WAFT
Free essentials
- Single-unit blend calculator
- Metric and US customary units
- Saved diffuser recipes
- Ingredient reference library
- Standard life estimate
No account. No subscription.
WAFT PRO
Seller toolkit
- Batch calculator and shopping lists
- Cost engine with optional labor
- Markup, margin, and wholesale pricing
- Marketplace fee solver
- Personal life calibration
One purchase. No recurring subscription.
ALSO FROM LAVENDER INK
Make candles too?
Meet Chandler—the companion workspace for candle formulas, batch scaling, cure timers, testing, costs, and reports.
A precise instrument for reed diffuser makers.
Build with confidence, keep your recipes organized, and take the next step toward repeatable production.