Exact jump height, air time, and maximum flat stud gap for your WalkSpeed, JumpHeight, and Gravity.
With default Roblox Humanoid settings (WalkSpeed = 16 studs/s, JumpPower = 50 or JumpHeight = 7.2 studs, Workspace.Gravity = 196.2 studs/s²), a character stays airborne for 0.510 seconds on flat ground and clears a maximum horizontal gap of 8.15 studs (or 6.93 studs with a 15% comfort margin).
Optional: check one platform gap.
local Players = game:GetService("Players")
workspace.Gravity = 196.2
Players.PlayerAdded:Connect(function(player)
player.CharacterAdded:Connect(function(character)
local humanoid = character:WaitForChild("Humanoid")
humanoid.WalkSpeed = 16
humanoid.UseJumpPower = false
humanoid.JumpHeight = 7.2
end)
end)
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At WalkSpeed 16, JumpPower 50, and Gravity 196.2, the theoretical flat-ground gap from edge to edge is 8.15 studs. For comfortable obby stages that account for human reaction time, keep standard gaps at or below 6.9 studs.
Take-off velocity (JumpPower) equals √(2 × Workspace.Gravity × JumpHeight). At default gravity (196.2) and JumpHeight 7.2, take-off velocity is ~53.15 studs/s.
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