Gems to Speed-Up Time Converter
Estimate gems needed to skip build or upgrade time in Clash of Clans. Approximate; in-game cost may vary. UK spelling.
Gems for speed-up
In Clash of Clans, you can spend gems to finish upgrades or training early. The real cost depends on the remaining time and the game's formula. This tool gives an approximate gem count based on hours (about 7–8 gems per hour as a guide). Always check the actual cost in-game.
Source: Supercell Clash of Clans in-game speed-up cost (varies by time remaining). Approximate rate from community guides; Clash of Clans.
Frequently Asked Questions
How many gems to finish upgrade in Clash of Clans?
Gems scale with time remaining; the game shows the exact cost. As a rough guide, speeding up is often around 1 gem per 5–10 minutes depending on total time.
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