How Many Refills a Day Does a 5 ml Tank Need at 60 W?

Overview

5ml tank how long it lasts at 60 W depends on how much liquid you use, and the refills you need per day equal ml used per day divided by 5. We have not run a logged test, so this page gives you the formula, worked examples and a way to measure your own use. It is written for adults (21+).

• 5ml tank how long: the short answer
• Why we give a formula, not a test log
• Worked examples
• Estimate your own use
• What a maker lists around 60 W
• Ways to use less
• Tanks and where to look

5ml tank how long: the short answer

There is no single number we can honestly give. A 5 ml tank empties after 5 ml of liquid has been used, and how quickly that happens depends on the person, the coil and the setting. At 60 W, the same tank can last a short time for one person and most of a day for another.

What we can give you is the arithmetic. Refills per day equal the ml you use in a day divided by 5. If you use 6 ml in a day, that is 1.2 refills. If you use 15 ml, it is 3 refills. The table further down shows the pattern for several amounts.

We also cannot tell you a typical daily amount, because we have no sourced figure for one, and we would rather say so than quote a number from memory. If you want a real answer for your own setup, the measuring method in the “Estimate your own use” section takes a few days and gives you your number.

Does 5 ml last a day?

It can, if you use 5 ml or less in a day, and it cannot if you use more. By the formula, 5 ml of use in a day equals exactly one refill. Measure your own use to find out which side of that line you are on.

Why we give a formula, not a test log

Our content plan for this page called for a first-party test log: several kits, one wattage, a stated puff length, a stated liquid and a weighed result for each. We have not run that test, so there is no log to publish, and we are not going to present estimates as if they were results.

A real log would need a number of things stated before any result is shown. These include how many kits were tested, which tank and coil each one used, the wattage, the liquid, the length of each puff, how the liquid was measured and the date. Without those, a figure such as “ml per 100 puffs” means little, because it changes with each of them.

So instead, this page does three honest things. It gives you the formula, which is arithmetic and always correct. It labels every example number as illustrative. And it shows you how to build your own log, which is more useful to you than ours would be, because it reflects your tank, your coil and your habits.

How many ml per puff?

We have no sourced figure, so we do not quote one. You can work it out yourself: ml used divided by the number of puffs. Our measuring steps are in the section below.

Worked examples

The table applies the formula to five daily amounts. The amounts are illustrative numbers chosen to show the pattern, not measured results and not typical figures. The 3.5 ml and 2 ml columns use the other glass sizes that some tanks list, so you can see how capacity changes the number of fills.

Illustrative ml used per day	Refills with 5 ml	Fills with 3.5 ml	Fills with 2 ml
3 ml	0.6	0.9	1.5
6 ml	1.2	1.7	3.0
9 ml	1.8	2.6	4.5
12 ml	2.4	3.4	6.0
15 ml	3.0	4.3	7.5

Figures are rounded to one decimal place. The pattern is the useful part: moving from 5 ml to 2 ml multiplies the number of fills by 2.5 for any daily amount. The 2 ml size is listed by some makers with a TPD label, which is a regulatory term.

Estimate your own use

Here is a method that needs nothing more than a measuring syringe or a scale that reads in small steps. It gives you a number that belongs to your setup.

1. Fill the tank to a known level and note the amount you added, in ml.
2. Use the tank as you normally would for a set period, such as a full day.
3. Refill to the same level and note how much you had to add. That amount is what you used.
4. Repeat for three or four days and take the average.

Then apply the formula: refills per day equal ml per day divided by your tank capacity. If you also count puffs, divide ml used by puffs to get ml per puff, or multiply by 100 for ml per 100 puffs.

For example, if you added 7.5 ml over a day, that is 7.5 divided by 5, or 1.5 refills. This is an illustration of the arithmetic only. Keep the same liquid, coil and setting during the measuring period, otherwise the average will mix different conditions.

What a maker lists around 60 W

For the 5ml tank how long question, 60 W is just a setting, and whether it suits your coil is something the maker states. On the Geekvape Zeus sub-ohm tank page, the Mesh Z1 coil at 0.4 ohm is listed for 60 to 70 W, and the pre-installed Mesh Z2 coil at 0.2 ohm is listed for 70 to 80 W. The same page lists the capacity as 5 ml, 3.5 ml or 2 ml (TPD), with top filling.

That means 60 W sits at the bottom of the Z1 range on that tank and below the Z2 range. We mention this to make a simple point: check the wattage range printed for your coil before you pick a setting, and use the maker’s manual as the reference. Our coil resistance guide explains how to read resistance, and our guide on coil wattage that is too high covers settings.

The page does not tell us how much liquid the tank uses at any wattage, so we do not claim a link between the two. If you change your wattage, treat it as a new setting and measure again.

Why do sub-ohm tanks use more?

We have no sourced explanation or figure, so we do not claim that they do. What we can say is that the Zeus page lists coil ranges of 60 to 80 W, and that your own measurements will tell you what your setup uses.

Ways to use less

We cannot promise that any change will cut your use, because we have no sourced figure for how settings change it. What we can offer are steps that are sensible and testable.

• Stay inside the wattage range printed for your coil, as set by the maker.
• Change one thing at a time, such as wattage or puff length, then measure for a few days with the method above.
• Keep a note of the result, so you can see whether the change made any difference to your numbers.
• Check your coil’s condition, since our coil lifespan guide lists signs that a coil is due for replacement.
• Read your liquid’s label. Our VG and PG ratio guide explains what the numbers mean.

Back to the question of 5ml tank how long it lasts: the point of measuring is that the result is yours. A change that helps one setup may do nothing for another.

Is 6.5 ml better?

By the formula, a larger tank needs fewer fills for the same use: 13 ml a day is 2.0 refills with 6.5 ml and 2.6 with 5 ml. Whether it is better depends on the tank. We do not list a 6.5 ml model here, so check the maker’s capacity line for any tank you are considering.

Tanks and where to look

Stock changes often, so we do not list specific tanks on this page. We would rather send you to the categories where current items are shown. Our vape kit category and starter kit category show what is currently listed.

When you compare tanks, read these lines on the maker’s listing: capacity, any alternative glass sizes, the coils supplied with their resistance, the wattage range for each coil and the filling method. Those lines give you the inputs for the formula and the settings to start from.

For liquids, our freebase e-liquid guide covers the type commonly used in sub-ohm setups. If you are still deciding between device types, our MTL vs DTL guide explains the difference in draw styles.

Sales are for adults aged 21+ only. Delivery details are in our delivery terms.

Source: Geekvape Zeus sub-ohm tank page (manufacturer).