Candle Jar & Batch Calculators
Plan wax fill, fragrance load, unit conversions and wick testing for candle production.
Candle Jar Wax Fill Calculator
Estimate usable fill weight, wax requirements, fragrance oil and total batch quantities based on your candle jar size.
Candle Fragrance Load Calculator
Calculate fragrance oil requirements from wax weight, fragrance load and production quantity.
Candle Jar Unit & Capacity Converter
Convert the units commonly used between international glass packaging suppliers and candle brands.
Wick Starting Point Calculator
Use jar diameter, wax type and fragrance load to plan a wick-testing approach. This tool does not replace physical burn testing.
Need Candle Jars for Your Production?
Bright Glassware supplies candle jars, lids, decoration and packaging solutions for candle brands and manufacturers. Use your calculation as a practical starting point for jar selection, sampling and bulk sourcing.
Common Candle Jar Conversion Charts
Use these quick-reference values when buyer briefs and supplier specifications use different volume or dimension units. Volume tables use the standard U.S. fluid-ounce conversion.
Quick mL to oz Conversion Chart
Common milliliter values converted to U.S. fluid ounces for candle jar and packaging discussions.
| Milliliters (mL) | Ounces (fl oz) |
|---|---|
| 10 mL | 0.34 fl oz |
| 30 mL | 1.01 fl oz |
| 50 mL | 1.69 fl oz |
| 60 mL | 2.03 fl oz |
| 100 mL | 3.38 fl oz |
| 150 mL | 5.07 fl oz |
| 200 mL | 6.76 fl oz |
| 240 mL | 8.12 fl oz |
| 250 mL | 8.45 fl oz |
| 300 mL | 10.14 fl oz |
| 375 mL | 12.68 fl oz |
| 500 mL | 16.91 fl oz |
| 700 mL | 23.67 fl oz |
| 750 mL | 25.36 fl oz |
| 1,000 mL | 33.81 fl oz |
Quick oz to mL Conversion Chart
Common U.S. fluid-ounce values converted to milliliters for glass container capacity and sourcing.
| Ounces (fl oz) | Milliliters (mL) |
|---|---|
| 1 fl oz | 29.57 mL |
| 2 fl oz | 59.15 mL |
| 3 fl oz | 88.72 mL |
| 4 fl oz | 118.29 mL |
| 6 fl oz | 177.44 mL |
| 8 fl oz | 236.59 mL |
| 12 fl oz | 354.88 mL |
| 16 fl oz | 473.18 mL |
| 24 fl oz | 709.76 mL |
| 28 fl oz | 828.06 mL |
| 32 fl oz | 946.35 mL |
| 40 fl oz | 1,182.94 mL |
| 60 fl oz | 1,774.41 mL |
Common Candle Jar Diameter: mm to inch
Bright Glassware-specific sourcing reference for jar openings, label space and wick-testing dimensions.
| Millimeters (mm) | Inches (in) |
|---|---|
| 60 mm | 2.36 in |
| 70 mm | 2.76 in |
| 75 mm | 2.95 in |
| 80 mm | 3.15 in |
| 85 mm | 3.35 in |
| 90 mm | 3.54 in |
| 100 mm | 3.94 in |
Common Candle Jar Diameter: inch to mm
Useful when a buyer brief gives jar diameter or opening size in inches and the supplier drawing uses millimeters.
| Inches (in) | Millimeters (mm) |
|---|---|
| 1/16 in | 1.59 mm |
| 1/8 in | 3.18 mm |
| 1/4 in | 6.35 mm |
| 1/2 in | 12.70 mm |
| 1.00 in | 25.40 mm |
| 2.00 in | 50.80 mm |
| 2.25 in | 57.15 mm |
| 2.50 in | 63.50 mm |
| 2.75 in | 69.85 mm |
| 3.00 in | 76.20 mm |
| 3.25 in | 82.55 mm |
| 3.50 in | 88.90 mm |
| 3.75 in | 95.25 mm |
| 4.00 in | 101.60 mm |
Fragrance, Unit & Wick Reference Guides
Use these static references alongside the interactive tools so common planning values stay easy to scan, compare and share during candle jar sourcing.
Candle Fragrance Load Examples
Examples use fragrance weight ÷ wax weight, matching the Fragrance Load Calculator above.
| Wax Weight | 6% Load | 8% Load | 10% Load | 12% Load |
|---|---|---|---|---|
| 100 g | 6 g | 8 g | 10 g | 12 g |
| 150 g | 9 g | 12 g | 15 g | 18 g |
| 180 g | 10.8 g | 14.4 g | 18 g | 21.6 g |
| 200 g | 12 g | 16 g | 20 g | 24 g |
| 250 g | 15 g | 20 g | 25 g | 30 g |
Common Units in Candle Jar Sourcing
Use the Unit & Capacity Calculator when a buyer brief and supplier drawing use different measurement systems.
| Buyer Specification | Supplier Specification | Common Use |
|---|---|---|
| fl oz | mL | Jar liquid capacity |
| oz | g | Wax and fragrance weight |
| inch | mm | Jar diameter, height and opening |
| lb | kg | Batch material and shipping weight |
Candle Jar Diameter & Wick Testing Reference
This table mirrors the testing logic in the Wick Starting Point Calculator and is intended only as a practical test-planning framework.
| Inner Jar Diameter | Practical Testing Starting Point |
|---|---|
| Under 25 mm / under 1 in | Use the smallest wick families and test micro-vessel behavior carefully. |
| 25 to under 51 mm / 1–2 in | Start with narrow single-wick tests and compare adjacent family sizes. |
| 51 to under 76 mm / 2–3 in | Single-wick testing is still primary, but compare multiple wick families. |
| 76 to under 102 mm / 3–4 in | Compare stronger single-wick options and, if needed, early double-wick tests. |
| 102 mm and above / 4 in+ | Plan a broad test matrix including larger families and multi-wick layouts. |
HTP Wick Rate Chart / HTP 灯芯指标表
Reference performance metrics for HTP wick families. Use this chart with the Wick Starting Point Calculator and confirm all final wick choices through controlled burn testing.
| Wick Model / 灯芯型号 | Flame HT - cm (in) / 火焰高度 | ROC - g/hr (oz/hr) / 燃烧速率 | Wax Pool - cm (in) / 蜡池直径 | Suggested Glass Container Inner Diameter / 建议玻璃杯内径 inch (″) / mm |
Yields - (m/kg) / 产出 | Total # of Ends / 股数 |
|---|---|---|---|---|---|---|
| HTP-31 | 1.93 (0.76) | 2.83 (0.10) | 3.34 (1.31) | < 1" / < 25 mm | 1601 | 16 |
| HTP-13 | 2.09 (0.82) | 3.13 (0.11) | 3.51 (1.38) | < 1" / < 25 mm | 2391 | 12 |
| HTP-41 | 2.14 (0.84) | 3.25 (0.11) | 3.57 (1.41) | 1–2" / 25–51 mm | 1355 | 19 |
| HTP-52 | 2.43 (0.96) | 3.70 (0.13) | 3.82 (1.50) | 1–2" / 25–51 mm | 1026 | 24 |
| HTP-62 | 2.56 (1.01) | 4.16 (0.15) | 4.07 (1.60) | 2–3" / 51–76 mm | 962 | 27 |
| HTP-72 | 2.61 (1.03) | 4.32 (0.15) | 4.16 (1.64) | 2–3" / 51–76 mm | 869 | 30 |
| HTP-73 | 2.67 (1.05) | 4.48 (0.16) | 4.25 (1.67) | 2–3" / 51–76 mm | 768 | 32 |
| HTP-83 | 3.10 (1.22) | 4.73 (0.17) | 4.39 (1.73) | 3–4" / 76–102 mm | 667 | 35 |
| HTP-93 | 3.52 (1.38) | 5.12 (0.18) | 4.61 (1.81) | 3–4" / 76–102 mm | 635 | 38 |
| HTP-104 | 4.13 (1.62) | 6.00 (0.21) | 5.10 (2.01) | 3–4" / 76–102 mm | 613 | 43 |
| HTP-105 | 4.30 (1.69) | 6.26 (0.22) | 5.24 (2.06) | 3–4" / 76–102 mm | 595 | 45 |
| HTP-1212 | 4.16 (1.64) | 6.39 (0.23) | 5.31 (2.09) | ≥ 4" / ≥ 102 mm | 405 | 67 |
| HTP-1312 | 4.52 (1.78) | 7.30 (0.26) | 5.81 (2.29) | ≥ 4" / ≥ 102 mm | 367 | 70 |
| HTP-126 | 5.39 (2.12) | 7.67 (0.27) | 6.02 (2.37) | ≥ 4" / ≥ 102 mm | 502 | 55 |
| HTP-136 | 5.82 (2.29) | 7.84 (0.28) | 6.21 (2.44) | ≥ 4" / ≥ 102 mm | 468 | 58 |
| HTPXL100 | 6.13 (2.41) | 7.95 (0.28) | 6.42 (2.53) | ≥ 4" / ≥ 102 mm | 298 | 91 |
When & How to Use These Candle Calculators
Use each tool at the sourcing or production step where a jar dimension, formula assumption or unit mismatch could affect the next decision.
Select a Candle Jar
Enter the jar capacity or inner diameter, then compare the usable fill and dimensions before ordering samples.
Plan Wax & Fragrance
Use the wax-fill and fragrance tools to estimate per-candle requirements and production quantities for the planned batch.
Review Supplier Specs
Convert mL, fl oz, mm, inch, g and oz when buyer briefs and supplier drawings use different measurement systems.
Verify Before Production
Use the wick result as a starting point, then confirm fill, component fit and burn performance with production-style samples.
Jar Sizing & Batch Planning Basics
Two principles prevent many common sourcing and production mistakes.
Jar Capacity Is Not Wax Weight
An 8 oz candle jar does not automatically hold 8 oz of wax by weight. Actual fill depends on internal volume, usable fill line, wax density, fragrance load and jar geometry.
If your finished candle uses a closure, match the jar opening and rim with compatible candle jar lids before approving the final packaging.
- Use liquid capacity for the jar.
- Apply a realistic usable fill line.
- Use supplier-specific wax data when available.
Planning Candle Production Batches
Batch calculations become increasingly useful at 100, 500, 1,000 and 5,000 candles, where small per-candle errors can become significant material differences.
- Include a realistic production allowance.
- Plan wax and fragrance separately.
- Confirm packaging quantity and jar supply before production.
Why Accurate Candle Jar Planning Matters
Small assumptions at the jar-selection stage can become larger material, compatibility and sourcing problems in production.
Related Candle Jar Categories & Buying Guides
Move from a calculation to the product, component or packaging page that matches the next sourcing decision.
Turn Your Calculation Into a Candle Jar Project
Send your basic requirements to Bright Glassware. We can help you review jar capacity, quantity, decoration, lids and packaging for your candle production plan.
Send an Inquiry
Required fields are marked with an asterisk.
Frequently Asked Questions
Practical answers for candle jar sizing, wax fill and production planning.
Ready to Turn Your Calculation Into a Candle Jar Project?
Browse our candle jar collection or send your target capacity, fill weight and production quantity to our team for a practical B2B packaging recommendation.