Gem cost of resources
Use this before buying resources outright, especially when your storage is nearly full.
Gem calculators
Clash of Clans Gem Conversion Calculators
Calculate gem costs for resources, dark elixir, and upgrade timers before committing premium currency.
Gem cost of time
Check whether finishing a timer is worth it before tapping the green button in-game.
Planning notes
How to use the Clash of Clans gem calculators
Gems are the most limited currency in Clash of Clans, so a quick conversion is useful before buying resources or finishing a timer. This calculator is meant for planning decisions, not for pushing players toward spending. It helps compare the gem cost of gold, elixir, dark elixir, and remaining upgrade time before the in-game confirmation screen appears.
The best use case is a practical one: enter the amount you are short, compare the gem result against the time or resource pressure you are facing, then decide whether waiting, raiding, using magic items, or spending gems makes more sense.
When gem spending usually makes sense
Small timer finishes can be reasonable when they free a builder or laboratory slot right before you log off. The value gets weaker when the timer is long, because long finishes consume a large amount of premium currency for a benefit that could usually be solved by planning the next session.
- Use gems to keep builders active only when the next upgrade is already funded.
- Avoid buying resources when a few attacks can cover the same shortage.
- Compare dark elixir gem costs carefully because heroes and pets often create repeated pressure.
- Keep a reserve for builders, training boosts, or emergency war preparation.
Planning example
If an Archer Queen upgrade needs a small dark elixir top-up and your builders are otherwise idle, the resource calculator gives a fast estimate of the gem tradeoff. If the number feels too high, run a few farming attacks or adjust the target upgrade. If the shortage is tiny and the upgrade unlocks an important war timing, the spend may be easier to justify.
Accuracy notes
Clash of Clans can change pricing tables during updates. Treat the result as a planning estimate and confirm the final amount in-game before spending. The calculator is most useful for comparing choices before you reach the purchase screen.
Common gem spending decisions
| Decision | Usually better option | Why it matters |
|---|---|---|
| Long builder timer | Wait or use a Book/Hammer | Long timers can consume many gems for one upgrade. |
| Small resource shortage | Raid first, then recheck | A few attacks often beat buying resources directly. |
| Short lab finish | Consider gems if it starts the next research | The benefit is keeping research time from sitting idle. |
| War deadline | Use only if it changes the war plan | Spending is easier to justify when it affects a specific attack. |
FAQ
Should I buy resources with gems?
Usually no. Buying resources is often poor value compared with raiding, using resource potions, collecting season rewards, or waiting for treasury income.
Is finishing a timer better than buying resources?
It depends on the remaining time and the next upgrade. Finishing a short timer can be useful when it keeps a builder or lab active, while buying resources often has weaker value.
Does this replace the in-game confirmation screen?
No. Use it as a planning estimate, then confirm the exact cost in Clash of Clans before spending gems.
This is an unofficial fan-made planning tool. Clash of Clans and related game assets belong to Supercell. This site is not affiliated with, endorsed, sponsored, or specifically approved by Supercell.