What does an electric toothbrush cost?

A toothbrush offer includes more than the handle price. Add the heads and any necessary accessories to see what you’ll actually spend. Use the same period and refill schedule for every brush you compare.

Choose one comparison period

Choose a planning period, such as one or two years. This helps compare costs; it doesn’t predict how long a handle will last. Keep the number of users and refill schedule consistent.

The ADA recommends replacing a brush every three to four months, or sooner if the bristles fray. Check the product instructions too: Oral-B recommends three months for its heads.

Add up the costs

Use a simple formula

Total planned cost = starter kit + refill purchases + necessary accessories + applicable delivery, tax and battery costs.

Divide the refill pack price by its usable head count. Work out how many additional heads you’ll need after counting every included head, including the one fitted to the handle.

For example, suppose your two-year plan needs eight heads and the kit includes two. You’ll need six more. If refills come only in packs of four, you’ll buy eight and have two left for later. Record the cost of both packs and the leftover heads.

Decide which extras matter

Count bundle extras only when you’ll use them. Check that spare heads are the right fitting and style. For a travel case, check whether it stores the brush or charges it too.

Check spare chargers before counting them as a saving. Philips warns that similar-looking chargers can have different compatibility.

Allow for changing costs

Keep uncertain expenses separate, such as a future handle replacement or a change in refill price. Compare today’s discounted refills with their regular price so your decision doesn’t depend on a sale lasting indefinitely.

For refill subscriptions, check the ongoing price, delivery schedule and cancellation terms. Match deliveries to your needs to avoid accumulating unused heads.

Quick answers

Is a more expensive handle always more expensive overall?

Not always. A higher starter price may include useful accessories or lead to lower refill costs. Compare the totals using your current prices.

Should I include electricity?

Include it if you have reliable usage data. The charger’s label alone doesn’t tell you annual electricity use.

Save the worksheet with your handle’s model number. You’ll have a useful starting point when the next refill offer appears.