Ejuice Calculator

Professional DIY E-liquid Recipe & Mixing Tool

An ejuice calculator is an essential digital tool used by DIY vaping enthusiasts to determine the exact proportions of ingredients required to create electronic cigarette liquid. By using an ejuice calculator, mixers can safely and accurately combine nicotine base, propylene glycol (PG), vegetable glycerin (VG), and flavor concentrates to achieve a specific nicotine strength and viscosity.

Whether you are a beginner or a seasoned professional, an ejuice calculator eliminates the guesswork, ensuring that every batch of e-liquid is consistent and safe for consumption. Without a proper ejuice calculator, determining how much 72mg nicotine base is needed for a 3mg 30ml bottle involves complex algebra that is prone to human error.

Ejuice Calculator Formula and Mathematical Explanation

The core logic of an ejuice calculator relies on volume-based and weight-based calculations. The most critical part is the Nicotine Dilution Formula: V1 x C1 = V2 x C2.

Variable	Meaning	Unit	Typical Range
Total Volume	Final amount of liquid	ml	10ml – 500ml
Nicotine Base	Concentrated nicotine source	mg/ml	18mg – 100mg
Target Nicotine	Desired end strength	mg/ml	0mg – 20mg
Flavor %	Ratio of flavor concentrate	%	5% – 20%
PG/VG Ratio	Balance of throat hit/vapor	%	50/50 – 20/80

To calculate the PG amount, the ejuice calculator must subtract the volume of the nicotine base (if PG-based) and the flavorings (usually PG-based) from the target PG volume to maintain the correct ratio.

Practical Examples (Real-World Use Cases)

Example 1: High-VG Sub-Ohm Mix

If you want to create a 60ml bottle of 3mg e-liquid with an 80/20 VG/PG ratio using a 72mg PG-based nicotine source and 15% flavoring: The ejuice calculator will show you need 2.5ml of nicotine base, 9ml of flavor, 48ml of VG, and only 0.5ml of additional PG. The high flavor and nicotine concentrations already fulfill most of the PG requirement.

Example 2: Balanced Pod System Mix

For a 30ml bottle of 12mg e-liquid at a 50/50 ratio using 100mg VG-based nicotine and 10% flavoring: The ejuice calculator calculates 3.6ml of nicotine base (VG), 3ml of flavor (PG), 11.4ml of additional VG, and 12ml of additional PG.

How to Use This Ejuice Calculator

1. Enter your Target Volume: How much total liquid do you want to end up with?
2. Set Target Nicotine: Enter your desired final strength (e.g., 3mg or 6mg).
3. Input Base Nicotine: The strength of the nicotine concentrate you purchased.
4. Adjust PG/VG Ratios: Typical sub-ohm use is 70% VG, while pods often use 50% VG.
5. Add Flavor Percentages: Check your flavor concentrate manufacturer for recommended percentages.
6. Review the Weight (Grams): For maximum accuracy, use a scale to measure by weight rather than syringes.

Key Factors That Affect Ejuice Calculator Results

Mixing e-liquid involves more than just math; several physical factors can alter the outcome of your ejuice calculator results:

• Specific Gravity: VG is much denser (1.26g/ml) than PG (1.04g/ml). Accurate ejuice calculator tools must account for these weight differences.
• Nicotine Carrier: Whether your nicotine is suspended in PG or VG changes the final ratio significantly.
• Flavor Carriers: Most flavors are PG-based. If using VG-based flavors, your ejuice calculator settings must be adjusted.
• Temperature: Liquids expand and change viscosity with temperature, which can slightly affect volumetric measurements.
• Steeping Time: While it doesn’t change the initial calculation, chemical reactions over time can subtly alter the perceived strength.
• Scale Calibration: If mixing by weight using ejuice calculator outputs, ensure your scale is calibrated to 0.01g precision.

Frequently Asked Questions (FAQ)

Why does my ejuice calculator show a negative PG value?

This happens when your flavor percentage and nicotine base (if PG-based) already exceed the total target PG. You may need to lower flavor percentages or use a higher VG ratio.

Is mixing by weight better than volume?

Yes, mixing by weight using an ejuice calculator is cleaner and more precise because it avoids the air bubbles and residue left in syringes.

What is a safe nicotine level to mix?

Always wear gloves when handling high-strength nicotine. Most DIYers stick to 72mg or lower for safety.

Do flavors contain nicotine?

No, flavor concentrates are typically pure PG and aroma chemicals. You must add nicotine separately using the ejuice calculator.

How do I store my DIY e-liquid?

Store in a cool, dark place. Nicotine degrades when exposed to heat and light.

Can I use this calculator for Nicotine Salts?

Yes, the ejuice calculator math remains the same for freebase and salt nicotine.

What if I have multiple flavors?

Simply sum the percentages of all flavors and enter the total into the flavor input of the ejuice calculator.

Does the calculator include “Steeping”?

No, steeping is the aging process. The ejuice calculator only handles the initial mixing ratios.

Related Tools and Internal Resources

• Vape Coil Longevity Guide – Learn how your PG/VG ratio affects coil life.
• PG vs VG Explained – Deep dive into the properties of base liquids.
• Nicotine Salt vs Freebase – Choosing the right nicotine for your recipe.
• E-liquid Safety Guide – Essential safety tips for handling nicotine.
• Best Vape Flavor Combinations – Popular profiles to try in your next mix.
• DIY Vaping Supplies Checklist – Everything you need to start mixing.