In Clash of Clans, Inferno Towers are one of the most important defenses in any base.
There are currently eleven levels available for this defense and it takes quite a long time to max it out completely.
It is quite common for players to often forget about the amount of gold required to build or upgrade an Inferno Tower and their corresponding upgrade time.
To solve that issue, I've decided to come up with this article.
In this article, I've listed the upgrade cost of Inferno Towers in Clash of Clans and the corresponding upgrade time.
I've done all the math required in this article so that you don't have to!
So, without any further ado, let's dive right into it!
Inferno Tower Upgrade Cost and Upgrade Time in Clash of Clans
I've organized all the data into a table.
To make sure that everything is easy to read and understand, I've also written the data in text, in an organized manner.
The table below displays the upgrade cost and upgrade time of Inferno Towers in the game:
| Inferno Tower level | Upgrade Cost (gold) | Upgrade Time |
|---|---|---|
| 1 | 1,000,000 | 12 hours |
| 1 to 2 | 1,200,000 | 1 day |
| 2 to 3 | 2,400,000 | 2 days |
| 3 to 4 | 3,400,000 | 2 days 12 hours |
| 4 to 5 | 4,200,000 | 3 days |
| 5 to 6 | 6,000,000 | 5 days |
| 6 to 7 | 8,000,000 | 7 days |
| 7 to 8 | 9,500,000 | 7 days 12 hours |
| 8 to 9 | 10,000,000 | 7 days 18 hours |
| 9 to 10 | 11,000,000 | 8 days |
| 10 to 11 | 22,000,000 | 15 days 12 hours |
The data in the above table can be interpreted as:
- You need 1,000,000 gold to build an Inferno Tower. It will get built in 12 hours.
- To upgrade an Inferno Tower from level 1 to level 2, you'll require 1,200,000 gold. The upgrade gets completed in 1 day.
- Upgrading an Inferno Tower from level 2 to level 3 requires 2,400,000 gold. It will take 2 days for the upgrade to complete.
- To upgrade a level 3 Inferno Tower to level 4, you'll need 3,400,000 gold and the upgrade will complete in 2 days 12 hours.
- Upgrading a level 4 Inferno Tower to level 5 will require 4,200,000 gold and the upgrade gets completed in 3 days.
- To upgrade an Inferno Tower from level 5 to level 6, you'll need 6,000,000 gold and the upgrade will take 5 days to complete.
- For upgrading a level 6 Inferno Tower to level 7, you'll require 8,000,000 gold. The upgrade will complete in 7 days.
- Upgrading a level 7 Inferno Tower to level 8 will require 9,500,000 gold. And the upgrade will take 7 days 12 hours to complete.
- To upgrade Inferno Tower from level 8 to level 9, you'll require 10,000,000 gold and 7 days 18 hours of time.
- Upgrading Inferno Tower from level 9 to level 10 requires 11,000,000 gold and 8 days!
- To max out your Inferno Tower by upgrading it from level 10 to 11, you will require 22,000,000 gold and 15 days 12 hours of time!
Conclusion
In this article, I've listed the upgrade cost and upgrade time of Inferno Towers in Clash of Clans.
I'll also update the data in this post if any numbers change in the game in the future.
Also, please note: I've updated the data in this post. The entire data in this post is up-to-date as of 2 September 2025.
To max out Inferno Towers quickly in the game, you can:
- use mostly farming attack strategies to gather all the gold required for the upgrades.
- add Inferno Towers to your 'Upgrade Priority' list so that you can focus on their upgrades.
Now, I'd like to hear from you:
Have you already maxed out the Inferno Towers in your base? If not, what's the current level of the Inferno Towers?
Or, you might have a question.
Either way, feel free to let me know by dropping down a comment below!
I've also written an article in which I've listed the upgrade cost of X-bows, along with corresponding upgrade time. You can read it here.
Cheers,
Raj Oberoi