Terpene Calculator

To work out how much terpene to add, multiply the weight of your final batch by your target percentage. For example, a 100 g batch at 5% needs 5 g of terpenes and 95 g of base. If you start from a fixed amount of base instead, the calculator divides by the remaining share, so 100 g of base at 5% needs 5.26 g of terpenes.

Pick a starting percentage

The calculator covers 0.5% to 20% of the final batch. Most teams start at the low end, make a small test batch, and only move up if the flavor needs it. A stronger percentage is not always better: too much terpene can change how a formula behaves in hardware.

Terpene to distillate ratio: worked examples

These examples use percentage of the final batch, the same way the calculator does. They apply to distillate and to other base oils.

• 1 g final batch at 2%: 0.02 g terpenes + 0.98 g base
• 1 g final batch at 5%: 0.05 g terpenes + 0.95 g base
• 1 g final batch at 10%: 0.10 g terpenes + 0.90 g base
• 100 g final batch at 5%: 5 g terpenes + 95 g base
• 1 kg final batch at 5%: 50 g terpenes + 950 g base
• 100 g of base at 5%: add 5.26 g terpenes for a 105.26 g batch
• 100 g of base at 10%: add 11.11 g terpenes for a 111.11 g batch

Percentage or ratio?

Some formulators talk in ratios instead of percentages. A 5% batch is roughly 1 part terpene to 19 parts base, and a 10% batch is 1 part terpene to 9 parts base. Enter the percentage in the calculator and it does the rest.

Base-first or final-batch

Choose "I have this much base" when you already know how much base oil you are working with. Choose "I want a final batch of" when you are planning a fixed output size. The calculator works out the base and terpene amounts either way.

Weight versus volume

Weighing is more accurate than measuring by volume. TERPLAX profiles have densities of roughly 0.83 to 1.03 g/mL, so a gram and a milliliter are not the same. For example, 5 g of a profile at 0.86 g/mL is about 5.8 mL. Set the terpene density in Advanced settings using the value on your profile's documents.

Auxiliary materials

If you use an auxiliary material such as Flow or ICE, enter its percentage in Advanced settings and the calculator keeps room for it in the batch. Confirm the use level with us before you order.

Test before you scale

Start with a 5 mL sample or a 7 x 5 mL sample pack, run a small batch in your own base and hardware, then move to 50 mL or 120 mL for validation before a bulk order. Send us your formula from this page and we can suggest profiles that fit. Always check the SDS and the rules in your own market before production.