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Input lab · verified 7 September 2026

Minecraft CPS test
swings, slots & ticks

Clicking faster does not make you hit harder here — since 1.9 it mostly makes you hit nothing. Measure your own rhythm against the cooldown, find out which three hotbar slots your hand actually owns, and see why the sensitivity slider behaves so strangely at the top of its range.

Sword cooldown
0.625s
Swings it allows
1.60
Invulnerability
10 ticks
Server rate
20 tps
An isometric voxel cut-away of terrain: grass, dirt and stone layers over a cave lit by gold ore
01 / Combat

Your clicking, run through the real rules

Two rules decide what a swing is worth, and most guides teach only the first. A swing thrown early is scaled down by the attack-strength curve. Then the target is invulnerable for ten ticks, and a weaker hit inside that window does nothing at all. Click below the way you actually click.

Time left8.0s

Click here to start. Then keep swinging for eight seconds.

full damage landed, weakened did nothing
—
Not run yet

The percentage is your damage against what the same eight seconds would have produced swinging exactly on the cooldown.

A voxel sword mid-swing with an emerald arc fading behind it
The chargeThe bar fills over 0.625 seconds with a sword. A swing at the very start is worth a fifth of one at the end.
Your rate—
The cooldown allows1.60
Swings that did nothing—
Damage you dealt—
Damage available—

One stationary target, no armour, no crits. Those change the numbers; none of them change the shape of the answer.

02 / Hands

Three of your nine slots are real

The hotbar is nine keys on the number row, and a hand resting on WASD reaches the first three without moving at all. Everything past five costs you movement for as long as your hand is away — which is why the block you need in a fight belongs in slot 1, 2 or 3, and never in 8.

1
2
3
4
5
6
7
8
9
no movementsmall stretchindex leaves Dhand shiftslook down
1Little finger, already there.
2Ring finger, no movement.
3Middle finger, no movement.
4Index finger stretches right.
5Index finger leaves D.
6The hand shifts; movement stops.
7The hand shifts; movement stops.
8Look-down territory in a fight.
9Look-down territory in a fight.
Nine voxel slots in a row, the first three lit gold, the rest fading into shadow
Reach, not preferenceScroll wheel reaches every slot without moving your hand, but it costs you the certainty of knowing which one you landed on.
03 / Aim

The slider is a curve, not a line

Minecraft cubes your sensitivity before it uses it, so the same ten-percent nudge means something completely different at each end of the slider. Down low you can tune finely; up high a single step can move your full turn by several centimetres and there is nothing between them.

A voxel ramp rising steeply, with emerald markers spacing further apart as it climbs
Even steps, uneven worldThe markers below the ramp are evenly spaced. What they land on is not.
Full turn—
One slider step—
04 / Time

The world only moves twenty times a second

A tick is fifty milliseconds, and nothing on a server happens between two of them. Your click waits for the next one, and your ping waits on both sides of it. That total is the reason a hit that looked clean on your screen registers somewhere else entirely.

One tick50.0 ms
Typical round trip to a registered hit—
Worst case—
A walking target moves—

A server under load runs below twenty ticks a second, and every millisecond of that lands on top of your ping. The block figure uses the documented walking speed of 4.317 blocks per second.

Twenty voxel cubes receding into darkness, the nearest lit bright emerald
Twenty steps a secondEach cube is one tick. Everything the server does, it does on one of them.
06 / Reference

Every default key

Java Edition on PC, verified 7 September 2026. Sneak is Shift and sprint is Ctrl, which is the reverse of every shooter — that one swap is behind most of the confusion.

ActionKeyGroupNote
MoveW / A / S / DMovement
JumpSpaceMovementHold in water or while flying to rise.
SneakLeft ShiftMovementStops you falling off edges and hides your name tag.
SprintLeft CtrlMovementDouble-tapping W also sprints.
Attack / destroyMouse 1Interaction
Use item / place blockMouse 2Interaction
Pick blockMouse 3InteractionSelects the block you look at if it is in your inventory (creative: any block).
Drop itemQInteractionCtrl + Q drops the whole stack.
Swap item with off-handFInteraction
InventoryEInterface
Hotbar slots1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9Interface
Cycle hotbarScroll Up / Scroll DownInterface
ChatTInterface
Command/InterfaceOpens chat with a slash already typed.
Player listTabInterfaceHold on multiplayer servers.
AdvancementsLInterface
Social interactionsPInterface
Toggle perspectiveF5Camera & debug
Hide HUDF1Camera & debug
ScreenshotF2Camera & debug
Debug screen (coordinates)F3Camera & debugF3 + G shows chunk borders; F3 + B shows hitboxes.
Cinematic cameraF8Camera & debug
FullscreenF11Camera & debug
07 / Answers

Straight answers

Checked, dated, and the same wording the reference page uses.

How do I see coordinates in Minecraft?+

Press F3 on Java Edition for the debug screen; XYZ shows your position. On Bedrock, turn on Show Coordinates in World Settings and they appear in the top-left corner.

How do I sprint in Minecraft?+

Hold Left Ctrl while moving forward, or double-tap W. On controller press the left stick while moving. Sprinting drains hunger faster.

What does pick block do?+

Middle mouse copies the block you are looking at into your hand if you have it in your inventory; in Creative it gives you any block, including ones with data.

How do I drop a full stack?+

Hold Ctrl and press Q with the stack selected, or drag it out of the inventory window. Plain Q drops one item.

How do I switch to third person?+

F5 cycles first person, third person behind and third person front. On controller press D-pad Up.

Why does double-tap sprint not work in Minecraft?+

The window is a setting almost nobody finds. Options › Controls › Sprint Window is measured in ticks — seven of them, or 350 ms, by default. Raise it if the double tap keeps failing, lower it if walking keeps turning into a sprint.

Can you hold down mining in Minecraft without an auto-clicker?+

Yes. Options › Controls › Attack/Destroy has a Toggle option: one press starts mining and one press stops it. Use Item/Place Block has the same, for eating, drawing a bow and bridging.

Unofficial Keymap Labs is not affiliated with, endorsed by or sponsored by Mojang Studios or Microsoft. Minecraft is a trademark of Mojang Studios. The combat model follows the attack-strength and invulnerability rules as documented on the Minecraft Wiki, and assumes one unarmoured stationary target. Every illustration on this page is an original voxel render made for it.