Professional calculators — no signup, no ads, no tracking. Open source.
NEC voltage drop, ampacity Table 310.16, and conduit fill calculations.
Companion to WireSpec iOS →Estimate materials, labor, overhead, markup, and profit. Print or copy bid summaries.
Companion to ContractorQuote iOS →NEC-compliant voltage drop for single and three-phase circuits. Copper and aluminum.
NEC Chapter 9 conduit fill. All conduit types (EMT, IMC, RMC, PVC, FMC).
Enter any two values — voltage, current, resistance, power — get the rest instantly.
Weekly gross pay with overtime, per diem, and annual projections. All OT rules supported.
Capital gains with FIFO/LIFO/HIFO, wash sale detection, and Form 8949 format.
Wash sales still legal for crypto ✓Real-time prices, P&L, allocation charts, and collateral/LTV monitoring.
Companion to XRPfolio iOS →Live price tracking with collateral thresholds — margin call, liquidation, and upsize alerts.