Brake fluid prices and costs for changing it vary depending on the type, quantity, and whether you do it yourself or have a mechanic do it.

• Price of brake fluid itself:
  Brake fluid generally costs between $6 and $39 per quart (approximately 0.95 liters)

. In Europe, prices range roughly from €5 to €21 per liter depending on the brand and DOT rating

• Cost to change brake fluid professionally:
  A brake fluid flush or change typically costs between $80 and $130 on average at a mechanic, with some shops charging up to $180 or more depending on the vehicle and location

. Labor rates can range from $150 to $210 per hour, but the brake fluid change itself usually takes less than an hour

• DIY cost:
  If you purchase the fluid yourself (around $10 to $20 for a quart) and do the job, you can save on labor costs

. Brake fluid change is a relatively straightforward job that can be done in under an hour

• Recommended interval:
  Most manufacturers recommend changing brake fluid every 2 years or every 40,000 to 45,000 miles to maintain safety and brake performance

In summary, brake fluid costs about $6–$39 per quart, and a professional brake fluid flush usually costs around $80–$130, with some variation based on vehicle and location. Doing it yourself can reduce costs to just the price of the fluid, typically $10–$20 per quart. Regular replacement every two years is advised for safety.