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Calcimator

Dive Equipment Maintenance Calculator

Estimate annual scuba equipment service costs for regulators, BCDs, computers, suits, and tanks based on dive frequency and service intervals.

Inputs

Results

Total annual cost ($)

$313.00

≈ 6 tanks of gas

Maintenance per dive ($)

$7.83

≈ 2 cups of coffee

Regulator cost ($)$120.00
BCD cost ($)$60.00
Computer cost ($)$30.00
Suit maintenance ($)$20.00
Tank costs ($)$35.00
Total + replacement reserve ($)$713.00
How to Use This Calculator
  1. Enter the number of dives you complete per year to calculate per-dive maintenance cost.
  2. Input your local regulator annual service cost and BCD inspection cost in dollars.
  3. Enter the dive computer battery replacement cost (annualized).
  4. Select your suit type — wetsuits cost less to maintain than drysuits which need seal and valve servicing.
  5. Input the number of tanks you own and their age — tanks older than 5 years require a hydrostatic test.
  6. Review Total Annual Cost and Cost per Dive to budget realistically for equipment upkeep.

How the result changes with Regulator service ($)

Regulator service ($)Total annual cost ($)Maintenance per dive ($)
50$243.00$6.08
175$368.00$9.20
325$518.00$12.95
450$643.00$16.08

What each input means

Dives per year
How many dives you do per year. Affects regulator service frequency.
Regulator service ($)
Cost per regulator service (1st & 2nd stage, hoses, rebuild kit).
BCD service ($)
Annual BCD inspection, inflator service, dump valve check.
Computer battery ($)
Battery replacement cost for dive computer (typically every 1-2 years).
Suit type
0 = wetsuit (low maintenance), 1 = drysuit (seal/valve service).
Number of tanks
Number of tanks you own (each needs annual visual + periodic hydro).
Tank age (years)
Age of your tank(s). Hydrostatic test required every 5 years.

What each result means

Total annual cost ($)
Total estimated annual maintenance cost for all equipment.
Maintenance per dive ($)
Annual maintenance cost divided by your dive count.
Regulator cost ($)
Annual regulator service cost.
BCD cost ($)
Annual BCD inspection cost.
Computer cost ($)
Annualised dive computer battery cost.
Suit maintenance ($)
Annual suit inspection/service cost.
Tank costs ($)
Annual tank visual inspection and hydro test costs.
Total + replacement reserve ($)
Annual costs plus a $400 reserve fund for eventual gear replacement.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Dives per year = 40, Regulator service ($) = 120, BCD service ($) = 60, Computer battery ($) = 45 = 7 input(s) provided
  2. Calculate Total annual cost
    Total annual cost = regAnnualCost + bcdAnnualCost + computerAnnualCost + suitAnnualCost + tankAnn...
    313 = $313
  3. Calculate Maintenance per dive
    7.83 = $7.83
  4. Calculate Regulator cost
    Regulator cost = regServicesPerYear * regulatorServiceCost
    120 = $120
  5. Calculate BCD cost
    60 = $60

Engine last updated . Checked against 3 independently-derived tests — how we verify calculators.

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