Soy Wax Fragrance Load Calculator — Wax to Fragrance Ratio

How to use this page as a calculator

The whole calculation is oil grams = wax grams × load, where every load on this page — and on every CSI product page — is a percentage of total wax weight, not of the finished candle. Find your wax weight in the left-hand column of the master table, read across to your load, and that is your oil in grams. The candle then weighs wax plus oil: 200 g of wax at 8% is 16 g of oil and a 216 g candle.

Three tricks cover everything the tables do not list. Add two rows: 350 g is the 300 g row plus the 50 g half of the 100 g row, so at 10% it is 30 + 5 = 35 g. Shift the decimal: every row scales by ten, so the 250 g row at 8% (20 g) gives you 2.5 kg at 8% (200 g) and 25 kg at 8% (2,000 g). Halve a row: 75 g of wax is half the 150 g row. Nothing on this page needs a calculator app.

Before you use a column, check you are allowed to. The load you may pour is the lower of two published figures: the wax page maximum and the oil page range. CSI 464 stops at 10%, so the 12% and 13% columns are not available to it whatever the oil says. Lavender and Dark Vanilla state 6–10% for candles, so those oils stop at 10% whatever the wax says. The ceiling map two sections down does that filtering for you.

Master table: oil grams for any wax batch from 100 g to 50 kg

Read down to your wax weight, across to your load. Figures are grams of fragrance oil. The two right-hand columns are marked because they are out of reach for several CSI grades and for most CSI oils — check the ceiling map before you use them.

▲ The 12% and 13% columns are available only where both the wax page and the oil page allow them: Luxury Soy Wax Chunks and Premium Coconut Soy CSI 468 state up to 13%, while CSI 464 stops at 10% and Eco Soy CSI 400 publishes no ceiling at all. On the oil side, most CSI pages quote 6–10% for candles; Japanese Cherry Blossom gives 6–13% and Cinnamon Vanilla gives up to 13%.

Note the top of the table as well as the bottom. CSI sells container soy in 500 g, 1 kg, 5 kg and 10 kg packs; the 25 kg and 50 kg rows are there because production batches are planned in those quantities, not because a single pack exists at that size. For more than 10 kg of one grade in a single consignment, ask on WhatsApp for bulk pricing rather than adding ten packs to a basket — one verified buyer above asks exactly that about bulk discounts, and it is a WhatsApp conversation rather than a checkout one.

Which columns each CSI soy grade can actually use

Then apply the oil’s own page as a second filter. Where the two disagree the lower figure governs, every time. A 13% pour needs a wax rated above 12% and an oil page that allows it: Japanese Cherry Blossom at 6–13% and Cinnamon Vanilla at up to 13% are the sort of pages that open that column. British Rose publishes a flashpoint of 192°C and 0% vanillin but no candle percentage, so on that oil the wax page is your only stated limit — and the honest answer is that 8–10% is where the rest of this catalogue sits.

Wax to fragrance ratio: the same numbers, said the other way

A load is a ratio. Ten per cent of wax weight means ten parts wax to one part oil — 10:1. Eight per cent is 12.5:1. Six per cent is 16.67:1. Working in ratios is useful at the bench because it scales without arithmetic: at 10:1, every 100 g of wax takes 10 g of oil and every kilogram takes 100 g, and you can check a dose by eye before you stir it in.

The last column is the one to keep an eye on. A recipe that says "10%" without saying what the percentage is of is ambiguous, and the two readings are not interchangeable near a ceiling: 10% of the finished candle is 11.11% of wax weight, which is over the stated maximum for CSI 464. When a figure arrives without its convention attached, take the smaller oil weight.

Jar-fill quick table: from a container’s capacity to wax and oil

Stated fill capacities are poured weights. To get from one to a shopping list, run the formula backwards: wax = fill ÷ (1 + load) and oil = fill − wax. The table below does it for real CSI containers at 8% and at 10%, with the oil cost at British Rose 1 kg pricing (₹3.07/g).

Two practical notes. Leave a few grams of headspace rather than pouring to the stated capacity — the number is what the container holds, not a target. And the big containers change the economics of a mistake: an Apothecary or Borosilicate jar is four to five times the wax and oil of a votive, so prove a load in the small format and scale it up, never the other way round (choosing glass jars).

What each load costs, by oil

Oil is the line that moves when you change a load; the wax, wick and jar do not. Below is the cost of the oil alone in a 200 g wax pour at each load, for four CSI oils spanning the catalogue — Citrus Lemon at ₹2.83 a gram, British Rose at ₹3.07, Lavender at ₹5.22 and Dark Vanilla at ₹7.65, all at 1 kg pricing.

Read the two tables together before you decide that a higher load is expensive. On British Rose the whole distance from 6% to 13% is a few rupees a candle; on Dark Vanilla the same distance is several times that, because the oil is more than twice the price per gram. The load decision is worth making on performance and stability, and the money only starts to matter at batch scale and on the dearer oils (can too much fragrance oil make a candle smell weaker).

The reverse calculator: how much wax a pack of oil doses

Turn the formula around: wax = oil ÷ load. A 500 gm pack of oil at 10% doses 5 kg of wax; at 8% it doses 6.25 kg; at 6%, 8.33 kg. Candle counts assume 200 g of wax a candle, so divide the wax figure by five to get candles per kilogram if you pour a different size.

This is the table that prevents the two classic ordering mistakes. The first is buying a 50 gm pack to test a fragrance and discovering it only doses 0.5 kg of wax at 10% — about 2.5 test candles at 200 g, which is a three-jar round with a little spare and no production run. The second is buying 1 kg of an oil you have not cured yet: at 10% that commits you to 10.0 kg of wax and 50.0 candles of one scent.

Work the other way for festive planning. Five hundred Diwali candles at 200 g of wax and 8% is 100 kg of wax and 8 kg of oil; at 10% it is 10 kg of oil. Diwali 2026 falls on 8 November 2026, so a batch poured by mid-October clears a 14–21 day cure in time — which means the oil order has to be settled well before the pour, not during it (fragrance oil for 500 Diwali candles and how much a candle business needs).

The bench card, rounding rules and a worked check

The card. Oil = wax × load. Wax = oil ÷ load. Wax from a jar = fill ÷ (1 + load). Poured weight = wax + oil. 10% is 10:1; 8% is 12.5:1. Governing load is the lower of the wax page and the oil page. That is the entire calculator, and it fits on a luggage tag tied to the pitcher.

Rounding. Round the oil down and the wax up, and round once at the level of the melt rather than jar by jar. Scaling a rounded per-jar figure is how a 10% recipe becomes a 10.5% recipe by the third batch — and 10.5% is over the stated maximum for CSI 464, which is the sort of drift nobody notices until a jar starts beading.

The check. Before the oil goes in, do the sum the other way: divide the oil you have weighed by the wax in the pot and confirm it matches the column you meant to read. Eight hundred grams of oil in 10 kg of wax is 0.08, which is 8%. If the answer is not the number you started from, something went in twice — and that is far cheaper to find in the pot than in a cured jar three weeks later.

One last honest note about what a page like this cannot do. The tables give you a legitimate dose, not the right one. Which column suits a particular oil, jar and room is decided by a cured burn test — 48 hours minimum on the Luxury Soy Wax Chunks page, ideally one to two weeks, with 14–21 days standard practice for soy — and no table has ever smelled a candle (making candles smell strong without exceeding the safe fragrance load).

Frequently asked questions