Calculators

Field Math You Can Check Before You Trust It

Six free worked examples from the 32 calculators built into Anvil Field. Each one shows its inputs, its formula, and its limits.

Try one now

Voltage drop & wire sizing

What wire size clears your amps and drop target for this run length.

EPA 608 leak rate

Whether the refrigerant you just added puts the appliance over the annualized leak-rate threshold.

Pay application & schedule of values

What you can bill this period after retainage, with pending change orders kept out of the total.

Deposit deductions

How much of a damaged item you can fairly charge against a deposit, prorated by its age.

Demurrage

How many chargeable container days you owe after free days and documented holds.

Gig offer floor

Whether an offer beats your per-mile and per-hour floors after expenses.