DIY E-Liquid Calculator
Enter your recipe targets and click Calculate Mix to get precise amounts for nicotine base, flavoring, PG, and VG.
What Is an Ejuice Calculator?
An ejuice calculator helps you mix DIY e-liquid accurately. Instead of guessing, you provide your desired bottle size, nicotine target, PG/VG ratio, and flavor percentage. The calculator then tells you exactly how many milliliters of each ingredient to add.
This matters because tiny measurement mistakes can produce a harsh vape, weak flavor, wrong nicotine level, or poor wicking performance. A reliable calculator removes the math stress so you can focus on recipe development.
How the Math Works
Nicotine base (ml) = (Target nicotine mg/ml × Final volume ml) ÷ Nicotine base strength mg/ml
Flavoring (ml) = Final volume ml × Flavor %
Target PG (ml) = Final volume ml × PG %
Target VG (ml) = Final volume ml × VG %
Then the calculator subtracts PG/VG already coming from nicotine base and flavorings to find additional plain PG and VG needed.
Why PG/VG Ratio Matters
Propylene Glycol (PG)
- Thinner liquid consistency
- Stronger throat hit
- Carries flavor effectively
Vegetable Glycerin (VG)
- Thicker and smoother feel
- Denser vapor production
- Slightly sweet note
A 50/50 blend is common for MTL setups, while high-VG blends like 70/30 (VG/PG) are popular in sub-ohm devices. Your best ratio depends on your hardware, coil type, and personal preference.
Step-by-Step Mixing Workflow
- Sanitize your workspace and label your bottle first.
- Put on nitrile gloves, especially when handling nicotine concentrate.
- Measure nicotine base precisely.
- Add flavor concentrates.
- Add calculated PG and VG amounts.
- Cap and shake thoroughly for 1–2 minutes.
- Steep if needed (custards, creams, tobaccos often improve with time).
Common Mistakes to Avoid
- Wrong nicotine units: mg/ml and percent are not interchangeable.
- Ignoring flavor carrier: most flavors are PG-based and affect final ratio.
- PG + VG not totaling 100%: this breaks the ratio calculation.
- No safety gear: concentrated nicotine can absorb through skin.
- Poor notes: always record exact recipe percentages and steep time.
Safety Notes for DIY E-Liquid
Even experienced mixers should treat nicotine with care. Store all concentrates in child-resistant containers, keep bottles away from pets and children, and clean spills immediately. If nicotine contacts skin, wash thoroughly with soap and water.
If you are new to DIY, begin with lower-strength nicotine and simple one-shot flavor recipes. Build consistency before attempting complex multi-flavor blends.
Quick FAQ
Can I use this calculator for nicotine-free juice?
Yes. Set target nicotine to 0 mg/ml. The calculator will set nicotine base to 0 ml and calculate only flavor, PG, and VG.
Why did I get an impossible mix warning?
Your selected nicotine carrier and/or flavor carrier may already exceed your PG or VG target. Adjust the ratio, lower flavor %, or use a different nicotine base carrier.
Should I mix by volume or weight?
This tool calculates by volume (ml). Many advanced mixers prefer weight for speed and precision, but volume-based mixing works well with accurate syringes or graduated cylinders.
Final Thoughts
An ejuice calculator is one of the most valuable tools for DIY mixing. It improves repeatability, reduces waste, and helps you fine-tune flavor and throat hit with confidence. Use the calculator above, keep detailed recipe notes, and iterate in small batches until your blend is exactly where you want it.