HOW IT WORKS
How to use this tool
- 1Choose repeater, Etho Java or Etho Bedrock mode.
- 2Set repeater count and delay, or the total items shared between the two hoppers.
- 3Read the full steady period in game ticks and seconds at 20 TPS.
Minecraft
Minecraft Redstone Clock Calculator
Calculate exact Etho hopper clocks and repeater loop timings in ticks and seconds. Supports separate Java and Bedrock redstone pulse rates.
Last updated:
Local browser processing • no upload required
Choose a repeater loop or a standard Etho hopper clock, then enter only the parameters for that circuit.
Clock period
- Full period (game ticks)
- 8
- Full period (seconds)
- 0.4
Periods assume 20 TPS. Etho results describe steady cycles of the standard two-sticky-piston circuit, not the first Java one-item cycle or another topology.
Next Creation Steps
Worked example
Calculate a Java or Bedrock hopper clock period
Etho mode models the standard two-sticky-piston circuit. Hopper transfer speed and full clock period are different quantities.
- Choose Etho hopper clock — Java and enter 64 items total across both hoppers: the steady full period is 1,012 game ticks, or 50.6 seconds at 20 TPS.
- Switch the same 64 items to Bedrock: 1,016 game ticks, or 50.8 seconds. The switching delay differs by edition.
- With one item, subsequent Java cycles take 14 game ticks and Bedrock cycles take 16. Java’s first cycle is 9 ticks; the result reports the subsequent full period, not startup.
Quick answer
What does repeater mode calculate?
It totals the delay of N repeaters set to D redstone ticks: 2 × N × D game ticks. Added torches or other components contribute delays outside this repeater-only model.
Key specifications
- Processing
- In your browser
- Tool files
- Processed on your device
- Access
- Free; no account required
- Result
- On-screen calculation; no file export
FAQ
FAQ
What does repeater mode calculate?
It totals the delay of N repeaters set to D redstone ticks: 2 × N × D game ticks. Added torches or other components contribute delays outside this repeater-only model.
How do game ticks and redstone ticks differ?
At 20 TPS, a game tick is 0.05 seconds and a redstone tick is two game ticks, or 0.1 seconds. Output ticks are game ticks.
Which hopper clock does this support?
The standard Etho circuit with two facing hoppers, comparators and two sticky pistons moving a redstone block. Other clock topologies have different timings.
How fast is a hopper clock?
For n ≥ 2 items, full periods are 2 × ((n − 1) × 8 + 2) game ticks in Java and 2 × ((n − 1) × 8 + 4) in Bedrock. One-item steady cycles are 14 and 16 ticks respectively; the first Java cycle is 9 ticks.
Which clock is better for farms?
Hopper clocks stay stable and adjustable for long cycles; repeater clocks are better for very short ones.