Checked against primary sources 2026-09-05
All free, no account
Florida Electrician Exam Tools: Calculators and Labs
Twenty four tools, all free and none of them asking for an account. Each one shows the working rather than only the answer, because the working is the part that transfers to a paper where the calculator isn't the point. Their table values were read in the 2026 book, and this page says what that means for a state testing on 2023.
Test yourself: thirty free questions, timed
On this page
The eight calculators
Voltage drop calculator. Chapter 9 Table 8 conductor properties built in, with the resistance method and the approximate formula side by side so you can see where they part.
Conduit fill calculator. Chapter 9 Table 1 for the percentages, Table 4 for raceway areas and Table 5 for conductor dimensions, with the fill worked step by step.
Box fill calculator. Every box size in 314.16 and the categories that get counted differently, shown as a count rather than a total you have to trust.
Wire size calculator. Load in, conductor out, with the ampacity, the correction, the adjustment and the termination limit each on its own line.
Ampacity calculator. Correction, adjustment and the termination temperature cap at 110.14(C), in the order the code applies them.
Motor calculator. Full load current, conductor sizing, overload and the short circuit device, each from its own Article 430 table.
Transformer calculator. kVA to amps, primary and secondary, with the overcurrent percentages that sit at 450.5 in the 2026 book and 450.3 in the 2023 edition Florida tests on.
Ohm's law calculator. Volts, amps, ohms and watts, single phase and three phase, with the formula it used printed under the answer.
The six games
Ampacity sprint. Table 310.16 against a clock: you're given a conductor and a temperature column and you name the ampacity.
Wire size sprint. The same table in reverse: you're given a load and you name the smallest conductor that carries it.
Which table? Ten prompts a round. Read the job, name the table or section you'd open first. Three levels.
Code navigation race. Twenty timed prompts a round: pick the chapter, the article or the section out of four.
Article 100 definitions flashcards. Sixty terms, tap to flip, missed cards come back, plus a timed twenty card sprint.
The calculation ladder. Eight rungs of exam arithmetic in the order they get harder, box fill through tap rules, ten problems each with the working shown. Rung one is free and the other seven come with the $79 purchase that also opens the question bank.
The four hands-on labs
A lab is a page you work rather than read. You drag something, turn something or connect something, and it answers with the number it just changed and the section that governs it.
Conduit bending simulator. Drag the rise and turn the angle dial, and the multiplier, the shrink, the take up and every mark move with it.
Switch wiring lab. Drag conductor ends onto terminals on a three way and four way circuit, flip the switches, and a checker names the section behind each fault.
Box fill lab. Drop conductors, grounds, a device yoke, clamps and fittings into a drawn box and watch the fill rise, with the 314.16 rule on every drop.
Grounding electrode lab. Drag electrodes into the ground, bond them into one system and size the grounding electrode conductor from Table 250.66 and its ceilings.
The labs hub opens all four.
The five drills
Daily question. One original multiple choice question every morning, the same one for everybody, with the worked explanation, the section cited and a streak counter.
Diagnostic. Twenty four questions across the main content areas. It scores every area, puts them in score order and names the two that came out at the bottom, which turns a vague plan into a list.
Article drill. A timed drill on which article governs a question, scored in seconds, because the code half of an open book paper is lost on search time rather than on knowledge.
Spot the violation. Twelve drawn scenes. Click the one thing that's wrong, and every region gets an explanation, including the ones that are fine.
Grounding or bonding sorter. Twenty four items sorted one at a time. Grounding reaches earth, bonding ties metal together, and several things do both.
The eligibility calculator
Hours to exam. Type in what you've got and it gives you the date you can sit, tied to the rule that sets it.
Florida measures two different things. For the state certified contractor exam, section 489.511 counts years inside a lookback window: three years of management experience within six, four years as a foreman, supervisor or contractor within eight, six years of training or technical education within twelve, or a combination totaling six years. For a county journeyman card, section 489.5335 asks for a registered, state approved apprenticeship or at least 12,000 hours of on the job training.
It's free, it needs no account, and nothing leaves your browser unless you email the result to yourself. The experience page explains the paths behind it.
Which edition these tools hold
The table values in these tools were read in the 2026 National Electrical Code. Florida's contractor exam references the 2023 edition until August 21, 2027, so here's exactly what that does and doesn't mean.
The table numbers are the same in both editions. Table 310.16 for ampacity, 314.16 for box fill, Table 250.66 for grounding electrode conductors, the Article 430 motor tables and Chapter 9 Tables 1, 4, 5 and 8. Our record of the numbers that moved between the 2023 and 2026 editions has no entry for any of them.
On the values inside the tables we're more careful. We read the 2026 tables and we haven't set them against a 2023 printing row by row. Use the tools to learn the method and check any number that decides an answer in the book you're carrying.
Two tools name a section that changed number. The transformer calculator cites transformer overcurrent protection at 450.5 in the 2026 book, which is 450.3 in the 2023 edition. The Ohm's law calculator points at load calculations in Article 120, which is Article 220 in the 2023 edition. Which edition is on the exam carries the full list.
How to use them without learning the wrong thing
A calculator that hands you an answer teaches you nothing you can carry into a room where the arithmetic has to come from you. That's why every tool here shows the steps.
Work the problem on paper first, then run it through the tool and compare the steps rather than the totals. A wrong total says something broke. A step by step comparison says which step.
Then log the step you got wrong. Twenty problems logged that way point at your two real weak spots inside a week.
We're not a training provider, an approved course or an examination vendor, and nothing here is endorsed by the Department of Business and Professional Regulation, the Electrical Contractors' Licensing Board or Pearson VUE. We're independent of all three.
Questions people ask
Are the tools free?
Yes. All eight calculators, the games, the four labs, the drills and the eligibility calculator are free and need no account. Seven of the eight ladder rungs come with the $79 purchase.
Which code edition are the tools built on?
The table values were read in the 2026 National Electrical Code. Florida's exam references the 2023 edition, and the table numbers this page names are the same in both.
Can I use these on the exam?
No. The department allows approved reference books, not devices or notes, and no scratch paper, formulas or study notes are permitted.
Does the hours calculator use Florida rules?
Yes. It works from the experience paths in section 489.511 for the state certified exam and the apprenticeship or 12,000 hour route in section 489.5335 for a county journeyman card.
Do the tools store anything?
They run in your browser and nothing leaves it unless you email a result to yourself.
Which tool should I start with?
The diagnostic, because it scores you across the main areas and puts them in score order. Then work the calculator for whichever area came out at the bottom.
Thirty free questions, timed, with the working shown
Every miss comes back with the arithmetic worked out and the code section named, so you learn the trap and not just the answer. No account.
All questions here are original. They are not actual exam questions, and no question bank can promise you a pass.
What this page cites
- Approved reference list, electrical contractors The list of books allowed in the room, by reference number and edition, with the certification areas each one applies to and the dates future editions take over. Read 5 September 2026. source
- NEC 2026 renumbering, article by article Our own record of the article and section numbers that changed address between the 2023 edition and the 2026 edition, each one read in the 2026 text before it went on the list. source
- Florida Electrical Contractors candidate information booklet The booklet marked effective February 2026. Source for the question counts, the time limits, the 75 percent pass mark, the tab rule, the identification rule and the retake rule. Read 5 September 2026. source
- Section 489.511, Florida Statutes Certification, application, examinations and endorsement, including the age of 18 and the experience paths that qualify an applicant to sit. Read 5 September 2026. source
- Section 489.5335, Florida Statutes Journeyman licensing, which the statute leaves to counties and municipalities, with a 75 percent floor and an hours or apprenticeship requirement. Read 5 September 2026. source
The 2023 to 2026 section crosswalk maps every section that moved, both directions, $29 once.