Fragrance Oil Required for 100 Kg of Candle Wax

The two conventions, and which one CSI uses

Load is always a ratio of oil to something. The two somethings in common use are the finished candle and the wax. CSI's guides, costings and tables all use the finished candle: load = oil ÷ (wax + oil). So a 200 g candle at 8% contains 16 g of oil and 184 g of wax, and the oil is 8% of what the customer holds. When you start from the candle, this is the simplest possible arithmetic: oil = candle weight × load. The candle-count pages in this cluster, from How Much Fragrance Oil Do I Need for 100 Candles? to How Much Fragrance Oil Do I Need for 5,000 Candles?, all work that way.

Starting from a sack of wax, you have to rearrange it. If oil is L of the finished candle, then wax is (1 − L) of it, so the finished candle weighs wax ÷ (1 − L) and the oil is that times L. Oil = wax × L ÷ (1 − L). At 8%, L ÷ (1 − L) = 0.08 ÷ 0.92 = 0.0870. Multiply any wax weight by that factor and you have the oil. For 100 kg: 8.696 kg.

The second convention simply multiplies the wax by the load: oil = wax × L. At 8%, 100 kg of wax takes 8 kg of oil. It is quicker to calculate and it is widely used, but the finished candle is not 8% fragrance: it is 8 ÷ 108 = 7.41%. If your burn tests were done in this convention, keep using it; your recipe is right for your candles. The only mistake is switching between the two without converting.

Oil for 100 kg of wax at every load

The table gives the oil for 100 kg of wax from 5% to 13%, under both conventions, and the real load you end up with if you weigh against the wax. The gap widens as the load rises, because L ÷ (1 − L) grows faster than L.

At 5% the two conventions differ by 0.26 kg, which is easy to miss. At 10% they differ by 1.11 kg, and at 13%, the top of the rated range for Luxury Soy Wax Chunks, by 1.94 kg. On a 100 kg batch that is several bottles of oil. Priced at the two featured oils' 1 kg rates, the 8% gap alone is worth about ₹3,940.45.

Add the allowance on top. With a 3–5% allowance for oil left on jugs and stirrers, 100 kg of wax at 8% of the finished candle needs 8.96 kg–9.13 kg of oil. The wax also loses a little in transfers, so 100 kg of wax will pour slightly fewer candles than the arithmetic says; the allowance on oil covers the oil side of that. The 3–5% is a working assumption, not a rule.

Candles from 100 kg of wax

Each candle takes candle weight × (1 − L) of wax, so 100 kg of wax makes 100,000 ÷ that many candles, rounded down. A 200 g candle at 8% takes 184 g of wax, so 100 kg makes 543 candles with 88 g left over, and those candles hold 8.688 kg of oil. The table covers the common sizes and loads, with the oil those whole candles need.

Two readings. First, load changes the candle count only slightly: 200 g candles at 6% take 188 g of wax each and 100 kg makes 531; at 10% they take 180 g and 100 kg makes 555. Second, the oil in whole candles is marginally less than wax × L ÷ (1 − L), because the leftover wax is not scented. For ordering, the formula figure is the safe one. How to Calculate Bulk Fragrance Oil Requirements for Candle Manufacturing shows the candle-first route for a whole order, and Bulk Fragrance Oil Procurement Calculator for Candle Manufacturers has lookup tables for both.

Wax ceilings in kilos of oil

Each wax maker states a maximum fragrance load. These are formulation limits, not regulatory limits, and they are ceilings, not targets. Expressed in kilos of oil per 100 kg of wax (finished-candle convention), they look like this, with the cost of 100 kg of each wax at listed prices:

CSI 464 at its 10% ceiling takes 11.11 kg per 100 kg — not 10 kg, because the ceiling is a share of the finished candle. If your recipe says "10% of the wax", that is 10.00 kg of oil and a real load of 9.09%, comfortably inside the ceiling; if it says "10% of the candle", you are at the limit. For each oil's IFRA maximum, check the oil's product page or request its IFRA certificate on WhatsApp.

The wax price differences are larger than most oil decisions. 100 kg of Natural Soy Pearl Wax in two 50 kg bags costs ₹42,480.00; the same in Luxury Soy Wax Chunks costs ₹59,990.00 in 10 kg bags, or ₹59,800.00 in 5 kg bags, because two 5 kg bags cost ₹9.00 less than one 10 kg. Waxes differ in how they hold and release fragrance, so test before you choose on price. For the oil side of the same comparison, Candle Fragrance Oil Price Per Kg in India lists per-kilo oil prices across the catalogue.

The featured order: 100 kg of CSI 464, two scents

Our featured scenario is a maker who has decided on Luxury Soy Wax CSI 464 and is buying it in 100 kg: ten 10 kg bags, ₹50,740.00. The wax is split evenly between two scents at 8% of the finished candle: Cinnamon Vanilla and Raat Ki Rani (Night-Blooming Jasmine). Each 50 kg of wax needs 50 × 0.08 ÷ 0.92 = 4.348 kg of oil; with a 5% allowance, 4.565 kg.

If the maker had weighed 8% of the wax instead, each scent would get 4.00 kg of oil and the candles would be 7.41% fragrance. That would save about ₹3,940.45 on oil — and change the candle that was tested. Whichever convention your burn tests used, scale in the same one.

That is ₹266.59 a candle across 543 candles, excluding labour, packaging, freight and GST. The jar pack of 5 means buying 545 jars for 543 candles; the spares cover a breakage or a test pour. Oil and wax are CSI live pricing, pulled 24 September 2026; wicks and jars were verified on 10 September 2026.

Where the conventions trip people

If you plan by candles rather than by sacks, How Much Fragrance Oil Do I Need for 1,000 Candles? and How Much Fragrance Oil Do I Need for 5,000 Candles? work the same maths from 1,000 and 5,000 candles. If 100 kg of wax is a month's usage, How Many Kg of Fragrance Oil Does a Small Candle Manufacturer Need Per Month? covers monthly oil, and How Much Fragrance Oil Inventory Should a Candle Manufacturer Keep? covers how much to keep on hand.

Frequently asked questions