Termiticide Concentrate Yield Calculator
How many finished gallons a bottle of liquid termiticide makes, how far it trenches, and how many bottles or cases your job needs — bottle oz, dilution, and trench geometry on one page.
How this is calculated
The headline is one honest division: a bottle holds a fixed number of fluid ounces, and your dilution rate says how many ounces go into each finished gallon — so the gallons a bottle makes is just bottle ÷ rate. Everything else builds on that.
finished gal / bottle = bottle_floz / rate_floz_per_gal (78 / 0.8 = 97.5)
finished gal / case = finished gal/bottle × bottles_per_case
trench rule (label): gallons = (LF / 10) × 4 × depth_ft (180/10 × 4 = 72 gal)
coverage (inverted): LF = (finished gal / (4 × depth_ft)) × 10
for a job (perimeter): job_gal = (job_LF / 10) × 4 × depth_ft + piers × 2
bottles = ceil(job_gal / finished gal/bottle)
cases = ceil(bottles / bottles_per_case)
leftover = bottles × gal/bottle − job_gal (never below 0)The trench rate — 4 gallons per 10 linear feet per foot of depth (0.4 gal/LF/ft) — and the ~2 gal/pier allowance are confirmed from PCT Online's published trench method (its own worked example: 180 ÷ 10 × 4 = 72 gal). Bottles and cases always round up — you can't buy a fraction of a bottle.
The dilution rate is provisional, not gospel. The seed table — 0.06 % ≈ 0.8, 0.09 % ≈ 1.2, 0.125 % ≈ 1.6 fl oz/gal — is a market-standard illustrative default (DIY Pest Control, Tierra Supply), not a label-verified constant. It is fully editable: change the rate to match the EPA-registered label on the bottle in your hand. The same arithmetic serves fipronil (Termidor, Taurus) and bifenthrin (Bifen I/T) — no brand is baked in. "fl oz" here means US fluid ounces (volume), and "gal" means US gallons (128 fl oz), not weight ounces or imperial gallons.
Sources
- How Much Termiticide Do I Need? (trench rate + worked example). PCT Online. Retrieved .
- Taurus SC mixing rates (0.06 / 0.09 / 0.125 % dilution table). DIY Pest Control. Retrieved .
- Taurus SC product page (rate table + trench rate). Tierra Supply. Retrieved .