Stone Slammer is one of the most popular siege machines in Clash of Clans.
Currently, there are five levels available for this siege machine.
It is quite common for players to forget about the upgrade cost of Stone Slammer and their corresponding upgrade time.
To solve that issue, I've come up with this article!
In this article, I've listed the upgrade cost, and upgrade time of Stone Slammer in Clash of Clans.
I've done all the math required so that you don't have to!
So, without any further ado, let's dive right into it!
Stone Slammer Upgrade Cost and Upgrade Time in Clash of Clans
I've organized the entire data in a table.
Moreover, to make sure that everything is easy to read and understand, I've also written the data in text in an organized manner.
The following table displays the upgrade cost, and upgrade time of Stone Slammer in the game:
| Stone Slammer Level | Upgrade Cost (elixir) | Upgrade Time |
|---|---|---|
| 1 to 2 | 2,500,000 | 2 days |
| 2 to 3 | 3,500,000 | 3 days |
| 3 to 4 | 6,500,000 | 7 days |
| 4 to 5 | 10,000,000 | 9 days |
The data in the above table can be interpreted as:
- To upgrade a Stone Slammer from level 1 to level 2, you'll require 2,500,000 elixir. The upgrade will take 2 days to complete.
- Upgrading a level 2 Stone Slammer to level 3 requires 3,500,000 elixir. And, the upgrade gets completed in 3 days.
- To upgrade a Stone Slammer from level 3 to level 4, you'll need 6,500,000 elixir. The upgrade will take 7 days to complete.
- Upgrading a Stone Slammer from level 4 to level 5 requires 10,000,000 elixir. And, the upgrade gets completed in 9 days.
Conclusion
In this article, I've listed the upgrade cost of Stone Slammer along with the corresponding upgrade time.
I'll also update the data in this article 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 October 2025.
Now, I'd like to hear from you:
Have you already maxed out the Stone Slammer in your base? If not, what's the current level of the Stone Slammer?
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 along with the corresponding upgrade time of Wall Wrecker in Clash of Clans. You can read it here.
Cheers,
Raj Oberoi