Ejuice Calculator for Recipes Using Drops

A precision tool for DIY vapers who prefer measuring ingredients by drops.

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Nicotine

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Base Liquid Ratio

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Flavorings

Your Recipe Will Appear Here

What is an E-juice Calculator Recipe Using Drops?

An **ejuice calculator recipe using drops** is a specialized tool for DIY (Do-It-Yourself) vapers who prefer measuring their ingredients by drops instead of the more common methods of volume (milliliters) or weight (grams). While less precise, measuring by drops is a simple entry point for beginners who may not have invested in syringes or digital scales. This calculator helps convert a desired recipe—including total volume, nicotine strength, and PG/VG ratio—into an estimated number of drops for each component: nicotine base, Propylene Glycol (PG), Vegetable Glycerin (VG), and flavorings.

The primary challenge and critical variable in this method is the ‘drops per ml’ value, which can differ significantly based on the dropper’s size and the liquid’s viscosity (thickness). This calculator requires you to input that value, allowing for a more customized and accurate recipe than generic drop-based guides.

The E-juice Drops Formula and Explanation

The calculation is a multi-step process that determines the volume of each ingredient in milliliters and then converts it to drops. The core logic ensures the final mix matches your target nicotine, flavor, and PG/VG specifications.

1. Total Drops: `Total Drops = Total Amount (ml) * Drops per ml`
2. Nicotine Volume (ml): `Nicotine (ml) = (Target Nicotine / Base Nicotine) * Total Amount (ml)`
3. Flavor Volumes (ml): `Flavor (ml) = (Flavor % / 100) * Total Amount (ml)`
4. PG/VG Calculation: The calculator determines the total amount of PG and VG needed in the final mix. It then subtracts the PG and VG contributed by the nicotine base and the (usually PG-based) flavorings. The remaining amounts are the pure PG and VG diluents you need to add.
5. Conversion to Drops: Finally, the milliliter amount for each separate ingredient (nicotine base, PG diluent, VG diluent, flavors) is multiplied by your ‘Drops per ml’ value to give you the final recipe.

Variables Table

Key variables used in the ejuice drops calculation.

Variable	Meaning	Unit	Typical Range
Drops per ml	The number of drops from your specific dropper that equals 1 milliliter.	drops/ml	15 – 40
Target Nicotine	Desired final nicotine strength.	mg/ml	0 – 20
Base Nicotine	Strength of your nicotine concentrate.	mg/ml	36 – 100
Target PG Ratio	Desired percentage of Propylene Glycol in the final mix.	%	20 – 80
Flavor Percentage	Percentage of a single flavor concentrate in the total mix.	%	1 – 20

Practical Examples

Example 1: Standard 3mg, 70VG Recipe

Let’s create a simple 10ml strawberry recipe with a common 70/30 VG/PG split.

• Inputs:
  • Total Amount: 10 ml
  • Drops per ml: 25
  • Target Nicotine: 3 mg/ml
  • Base Nicotine: 72 mg/ml (in 100% PG)
  • Desired PG Ratio: 30%
  • Flavor 1: 10% (Strawberry, PG-based)
• Results (approximate):
  • Nicotine Base: 10 drops (0.42 ml)
  • PG Diluent: 39 drops (1.58 ml)
  • VG Diluent: 175 drops (7.00 ml)
  • Flavor 1: 25 drops (1.00 ml)
  • Total: 249 drops

Example 2: Nicotine-Free, 50/50 Multi-Flavor Recipe

Here we’ll make a more balanced, nicotine-free, complex flavor mix.

• Inputs:
  • Total Amount: 30 ml
  • Drops per ml: 20
  • Target Nicotine: 0 mg/ml
  • Base Nicotine: 72 mg/ml (in 100% PG)
  • Desired PG Ratio: 50%
  • Flavor 1: 8% (Vanilla Custard, PG-based)
  • Flavor 2: 4% (Caramel, PG-based)
• Results (approximate):
  • Nicotine Base: 0 drops (0.00 ml)
  • PG Diluent: 228 drops (11.40 ml)
  • VG Diluent: 300 drops (15.00 ml)
  • Flavor 1: 48 drops (2.40 ml)
  • Flavor 2: 24 drops (1.20 ml)
  • Total: 600 drops

To create your own custom blend, check out some popular for inspiration on flavor percentages.

How to Use This E-juice Calculator Recipe Using Drops

Using this calculator is a straightforward process designed to give you a complete recipe in drops. Follow these steps for an accurate result.

1. Calibrate Your Dropper: This is the most important step. Take the dropper bottle you will use for mixing. Carefully count how many drops it takes to fill a 1ml syringe or measuring container. Enter this number into the “Drops Per ml” field.
2. Set Your Goal: Enter the “Total Amount to Make” in milliliters. This is the final size of your e-juice batch.
3. Define Nicotine Levels: Input your “Target Nicotine Strength” (what you want to vape) and the “Nicotine Base Strength” (the concentrate you are using). Also specify the PG/VG ratio of your nicotine base.
4. Set Final Ratio: Enter your “Desired Final PG Ratio”. The calculator will automatically determine the required VG percentage.
5. Add Flavors: For each flavor you are using, enter its percentage of the total recipe. Crucially, select whether the flavor concentrate is suspended in a PG or VG base, as this affects the final ratio calculation. Our guide on provides great tips on flavor percentages.
6. Review Your Recipe: The calculator will instantly update, showing you the required number of drops, milliliters, and percentage for each ingredient. The primary result provides a quick summary, while the table below gives a detailed breakdown.

Key Factors That Affect Your E-juice Drop Recipe

Several factors can influence the outcome of your DIY e-juice when measuring by drops. Being aware of them is key to consistency and safety.

• Drops per ml: This is the single most significant factor. A miscalculation here will throw off every other ingredient. Different liquids have different viscosities, and every dropper has a different tip size, leading to variations. Always calibrate!
• Liquid Viscosity: Vegetable Glycerin (VG) is much thicker than Propylene Glycol (PG). Therefore, a drop of VG is typically larger than a drop of PG from the same dropper. While this calculator uses a single `drops/ml` value for simplicity, this variation is why measuring by weight is more accurate.
• Holding Angle of the Dropper: Holding the bottle perfectly vertical will produce more consistent drops than holding it at an angle. Try to be consistent with your technique.
• Squeeze Pressure: A hard, fast squeeze can result in a larger drop or stream compared to a slow, deliberate drop. Patience and consistency are key.
• Flavor Base (PG vs. VG): Most flavor concentrates are PG-based. This is important because the PG from your flavors contributes to the final PG/VG ratio. This calculator accounts for that, so be sure to select the correct base for each flavor. Failing to do so can significantly alter your final ratio, affecting the throat hit and cloud production. A good can help you understand these ratios better.
• Total Flavor Percentage: A high total flavor percentage (e.g., 20-25%) means a large portion of your recipe’s PG content comes from the flavors themselves, leaving less room to add pure PG diluent.

Frequently Asked Questions (FAQ)

1. Is measuring e-juice by drops accurate?

It is the least accurate method compared to measuring by volume (ml) or weight (grams). Accuracy is heavily dependent on calibrating your ‘drops per ml’ value correctly and maintaining a consistent technique. It’s great for beginners but for reproducible results, upgrading to syringes or a scale is recommended.

2. Why is my ‘Drops per ml’ different for PG and VG?

VG is more viscous (thicker) than PG. This causes it to form larger drops. For ultimate precision when using drops, you would need to find the ‘drops per ml’ value for each individual ingredient. This calculator uses an average for simplicity, so using a value calibrated with a 50/50 PG/VG mix is a good starting point.

3. What should I enter for ‘Drops per ml’ if I don’t know it?

A common but rough estimate is 20-25 drops per ml for standard dropper bottles. However, this is just an estimate. For safety and consistency, especially when handling nicotine, you should not mix until you have properly calibrated your dropper.

4. Can I make nicotine-free (0mg) juice with this calculator?

Yes. Simply set the “Target Nicotine Strength” to 0. The calculator will show that you need 0 drops of nicotine base and will calculate the required PG and VG diluents accordingly.

5. What happens if my total flavor percentage is higher than my target PG ratio?

If your flavors are PG-based, this can create an impossible recipe. For example, if you want a 20% PG final mix but use 25% PG-based flavoring, the recipe cannot be made. The calculator will likely show a negative value for the PG diluent. You must either lower your flavor percentages or increase your target PG ratio.

6. Why does the calculator ask for the PG/VG ratio of my nicotine base?

Your nicotine concentrate is suspended in a base of either PG, VG, or a mix of both. This volume of PG/VG contributes to your final ratio. Knowing the composition of the nicotine base is essential for an accurate final PG/VG ratio in your e-liquid. For more info, a can be a useful resource.

7. How long should I steep my DIY e-juice?

Steeping allows the flavors to blend and mature. Simple fruit flavors may be ready to vape in a few days, while complex dessert or tobacco flavors can benefit from steeping for 2-4 weeks. Store the bottle in a cool, dark place and shake it daily.

8. What is the difference between PG and VG?

Propylene Glycol (PG) is a thin liquid that is a good flavor carrier and provides a stronger “throat hit.” Vegetable Glycerin (VG) is a thick, sweet liquid that produces dense vapor clouds. The ratio between them defines the vaping experience.