Finance

Personal Break Even Units Calculator (20 Years)

Find how many units must be sold to break even. This personal version uses a 20-year planning term as its starting point.

The Break even units figure is the number of units you must sell to exactly cover your costs: at that number, total revenue equals total costs, so you make neither a profit nor a loss. Selling fewer units leaves you short of covering costs, while every unit sold beyond that number adds to profit.

Formula

Break even units equal fixed costs divided by price minus variable cost per unit.

How it works

At break even, total revenue exactly covers total costs, with no profit and no loss.

Worked example

Fixed costs $10,000, price per unit $50, variable cost per unit $30, term 20 years. First, the contribution per unit is $50 minus $30, which is $20. Break even units are $10,000 divided by $20, which is 500 units. At 500 units, revenue is 500 times $50, which is $25,000, variable costs are 500 times $30, which is $15,000, and total costs are $15,000 plus $10,000, which is $25,000, so revenue exactly covers costs. As a planning pace only, not as an output of this calculator, reaching 500 units over 20 years means 25 a year, which is 2.08 a month. Selling 100 units more, 600 units in total, gives revenue of $30,000 against total costs of $28,000, so the profit is $2,000, because each extra unit adds $20.

Who this term suits for a person: A 20-year term suits a person with a long, patient hobby, for example someone making wooden items, restoring furniture, or selling garden produce to top up retirement savings. The pace is 25 units a year, so the work stays enjoyable, but 20 years is long enough for tools to wear out, for health and free time to change, and for the product itself to go out of fashion.

FAQs

What is break even?
Break even is the point where revenue covers all costs, so profit is zero.

Is this personal calculator exact?
No, it is an estimate for planning only, based on the numbers you enter.

Are these figures financial advice?
No, they are estimates for planning only, not financial advice. Check with a qualified adviser for decisions involving large sums.

Why does the break-even number stay at 500 units after 20 years?
Because this formula does not use the term at all. Break even units equal fixed costs divided by price minus variable cost, so $10,000 divided by $20 is 500 units on every page in this group. The term changes only the planning pace, which is 25 units a year over 20 years, and the risks around that pace, not the calculator's answer.

Is a 20-year term suitable for a person with irregular income?
It can help, because 25 units a year leaves room for quiet years, but it can also hide a problem: if no units sell for three years, the remaining years must sell about 29 units a year to catch up. Keep a simple yearly sales record, and if the shortfall grows for two years in a row, change the price, the product, or the fixed costs instead of waiting.

What should I check about repairs and replacement before a 20-year plan?
Fixed costs are rarely fixed for 20 years. Tools break, a kiln or a sewing machine needs replacing, and a market stall fee can rise. List the items inside the $10,000, note which ones will need replacing, and add a replacement allowance to the fixed costs before trusting the 500-unit figure for the full term.

Estimates only, not financial advice. Figures are approximate and do not include all fees, taxes, or changing rates unless stated.