README.md

local calculateScale = require(calculateScale)

local currentScale = calculateScale(myFrame)
local frameSize = frame.AbsoluteSize * currentScale

print(frameSize)

calculateScale.luau

--!strict
local function calculateScale(instance: Instance)
  local scaleValues = {}
  local lookInside = instance
  
  while lookInside do
    local uiScale = lookInside:FindFirstChildOfClass("UIScale")
    
    if uiScale then
      table.insert(scaleValues, uiScale.Scale)
    end
    
    lookInside = lookInside.Parent
  end
  
  local totalScale = table.remove(scaleValues)
  
  while #scaleValues > 0 do
    totalScale *= table.remove(scaleValues)
  end
  
  return totalScale or 1
end

return calculateScale