I'm Ordering 100 Candle Jars Before Testing Them — How Can I Calculate the Finished Candle Weight From the Jar Capacity?

What a listing can and cannot tell you

Ordering 100 jars before testing is common and not a mistake in itself. Festivals, stock and cash flow push makers to commit before the sample has arrived. The mistake is converting the listing into a single gram figure and ordering everything else against it. Sort what you know from what you are assuming, and the order sorts itself.

Read the table from the top. The first row is certain; the second is the biggest unknown; every row after it narrows the range a little more. A listing gives you the first row. Your scale gives you the rest in an afternoon. A hundred-jar order made before that afternoon is a bet on row two.

The estimate as a range, and what it means for 100 jars

Take the three readings from the 200 ml fill-weight hub, which uses the Matte family's 8 × 7 cm shape, a 1 cm glass base (our assumption), straight sides and the 0.86 to 0.9 factor. Each gives a per-jar range. Multiply by 100 and split at 8% (oil 8% of the candle, wax 92%), and the per-jar grams become an order.

The spread from the lightest reading to the heaviest is 4.14 kg of wax and 360 g of oil per 100 candles. Priced at CSI 464's 10 kg rate (₹0.51 per gram) and British Rose's 1 kg rate (₹3.07 per gram), that is ₹2,100.64 of wax plus ₹1,104.48 of oil: ₹3,205.12 that could be bought and not needed, or needed and not bought. The bottom row is worse: 200 g of wax needs 222 to 233 ml, more room than a 200 ml jar has at the brim, so ordering for "200 g" buys ₹2,334.04 of wax beyond what 100 candles at the 150 g planning figure use.

Money is the smaller risk

Surplus wax keeps; it becomes the next batch. The costly errors are the ones printed or promised. A label saying 200 g on a 150 g candle overstates it by 33%. A price built on 200 g of material leaves you guessing your margin. A customer promised a "200 g candle" gets less. None of those can be fixed with a top-up order. So the rule for a hundred untested jars is simple: no labels, no printed net weight and no published price until three jars are weighed. The declared-weight process is how professionals set label net weight; India's Legal Metrology (Packaged Commodities) Rules govern net-quantity declarations on pre-packaged goods, so check the current requirements for your product and channel. This is not legal advice.

The floor: what every reading needs anyway

Look at the lowest figure in each column. The lightest reading still needs 12.42 kg of wax and 1.08 kg of oil for 100 candles at 8%. That is the floor. Anything at or below it is a no-regret purchase: whichever way the weighing goes, you will use it. A 10 kg bag of CSI 464 and a 1 kg bottle of oil sit under the floor. The remaining 2.4 to 6.6 kg of wax, and 80 to 440 g of oil, are what the weighing decides.

Estimating from each kind of CSI listing

Not every listing is as uncertain as the 200 ml family. A figure already in grams removes the density step; a listing with no dimensions removes the geometry. Here is how we would estimate, and how far we would trust it, for the in-stock CSI containers a maker might order a hundred of. Wording is quoted from the pages as of 26 September 2026; the estimates are ours.

Why the Salsa has no floor. A lug-cap jar has a threaded neck and usually a shoulder below it. The listing's 200 ml may include that neck; your candle stops below the shoulder. Without a height or diameter, the arithmetic that works for a straight-sided jar has nothing to hold on to. It is also the cheapest of CSI's 200 ml jars per piece at 100 (₹29.50, against ₹40.12 in 5 Pcs), which is exactly what tempts a blind hundred. If you want it, the 5 Pcs sample costs ₹200.60, and buying it before the 100 Pcs brings the total to ₹3,150.60: five spare jars for ₹200.60.

Why the Green Iridescent's "300g" is not a planning figure. The page states "Capacity - 300g" and "Diameter - 7cm Height - 10cm". If it behaves like the 8 × 7 cm family per centimetre of depth, the brim holds about 257 ml; with 3.5 mm walls and straight sides, about 280 ml. Either way, 300 g of wax would need more room than the whole jar has at the brim. At 1 to 1.5 cm of headspace our worked example lands at 184 to 224 g. It is a single-unit listing at ₹150.00, in stock on 26 September 2026; the white version is out of stock. Ask us what "300g" measures, and plan nearer 200 g until you weigh one. Its sizing for a 200 g candle is covered in I Want to Make a 200 g Finished Scented Candle — What Size Jar Should I Buy Once Fragrance Oil and Headspace Are Included?.

Why a gram figure still needs a sample. "150g fill capacity" on the Clear Glass Jar with Golden Lid (₹94.40 a jar in packs of 10 or 20) is, in our view, the most usable capacity wording we publish: it is in grams and implies a fill. It still does not say whether it assumes a particular headspace or a lid fitted. Plan at or slightly under 150 g, and weigh a pack of ten before you order 100 (₹9,440.00 for five packs of 20). The coloured 150 g listings carry a stale "Deliveries Starting 5th Dec" in some titles, so confirm dispatch on WhatsApp.

Two ways to order: sample first, or commit the floor

Both routes end with 100 weighed, correctly labelled candles. They differ in what you commit before the scale speaks. Prices are CSI live pricing on 26 September 2026; costs exclude labour, freight, packaging and GST, and delivery times are not published, so confirm dispatch from Pune on WhatsApp.

The sample order is about 9% of the floor order. It uses five jars (₹354.00), about 690 g of wax (₹350.11 at the 1 kg price) and 60 g of oil (worth ₹205.32 at the 100 g price); everything else rolls into production. Route 2 need not cost more in the end, because everything in the floor gets used whichever reading your jar confirms. What it costs is flexibility: you have committed to this jar before you know whether you like how it burns.

The top-up, once three jars are weighed

After weighing, order up to your real need. The table sizes the top-up to the heavy end of each reading at 8%, in CSI pack sizes, over the 10 kg and 1 kg already bought. The spare is what the pack sizes leave over for pitcher residue and top-up pours; how much loss to allow at 100 candles is the 100-candle batch post.

For reading A, the whole order comes to ₹19,883.00 including 100 C2 wicks at ₹944.00 (₹198.83 per candle, excluding labour, freight, packaging and GST); with C1 as the winner, the wick line is ₹590.00 instead. Notice one pack choice in reading B: a single 500 g of British Rose is ₹1,593.00, while five 100 g packs would be ₹118.00 more. In reading A the three 100 g packs are the cheaper cash outlay, because a 500 g would leave most of itself on the shelf.

The day the jars arrive: the three weighings

This is the short list that answers the fill-weight question, nothing more. The full bulk-arrival measurement list (diameters at three heights, wall and base thickness, rim for lids, empty-jar weight) is in I'm Buying Candle Jars in Bulk for the First Time — What Measurements Do I Need Besides the Supplier's ml Capacity?; the quality checks that keep chipped or flawed jars out of production are in How Do I Create a Quality-Control Checklist for Glass Candle Jars Before They Enter Production?.

What to buy for the sample and the floor

Five items, in the order the plan uses them. They are chosen on what their pages state, price and stock on 26 September 2026, not on burn performance: CSI publishes no burn-down data for these jars. British Rose is the costing example only; any oil whose page states a candle load works the same way.

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