Operating Leverage Calculator

The Operating Leverage Calculator helps you understand how sensitive your operating profit is to a change in sales. Operating leverage measures the mix of fixed and variable costs in your business, and the more you rely on fixed costs the more your profit swings as revenue moves up or down. You enter your total sales, your variable costs and your fixed costs, and the tool returns your degree of operating leverage, usually shown as a multiple, along with your operating income. The degree of operating leverage, or DOL, is your contribution margin divided by your operating income, where contribution margin is sales minus variable costs and operating income is contribution margin minus fixed costs. A DOL of 2.5 means a 10 percent rise in sales should lift operating profit by about 25 percent, and a 10 percent fall in sales would cut it by the same amount. Business owners, finance managers and accountants use this to plan, to set pricing and to weigh the risk of a cost structure that leans heavily on rent, salaries or equipment. A few good habits help. Compare your DOL across years rather than reading a single figure in isolation, because the trend tells you how risk is building. Watch your operating income closely when it is small, because a low denominator can push DOL very high and exaggerate the effect. Finally, pair this with a break even view so you know the sales level you must hold to cover fixed costs, then keep a sensible buffer above it. Used together these checks give you a clear, honest picture of how exposed your earnings are to a downturn.

DOL = contribution margin / operating income, where contribution margin = sales - variable costs and operating income = contribution margin - fixed costs. Estimate only, not financial or tax advice.