Candle Formula Calculator is made for scented candle hobbyists, small-batch sellers, and studios. No login, no internet connection, and no account are required. All formulas, costs, and notes stay on your device. Key features: 1. Container volume conversion: enter container size or measured capacity to estimate needed wax. 2. Fragrance ratio calculation: calculate fragrance oil, dye, and additive amounts based on wax weight. 3. Batch production planning: generate total supply lists by cup count, loss rate, and specification. 4. Cost calculation: record wax, fragrance, jars, and packaging unit prices to estimate cost per candle. 5. Formula favorites: save reusable formulas, making notes, and review records for future batches.