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Reference

EV & energy reference charts

Look-up tables to go with the calculators: wattages, wire sizes, and the numbers you need at a glance, each with its source.

reference charts
13
categories
4

015 charts

EV

Cost to Charge by Model

What a full charge costs at home for popular EV models, with real battery and efficiency specs.

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Charging Time by Model

Level 1, Level 2, and DC fast-charging times for popular EV models, computed from real battery and onboard-charger specs.

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EV Range Comparison

Compare electric cars by EPA range, battery size, efficiency, and DC fast-charging speed, sorted by range to find the longest-range EVs.

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Battery Replacement Cost

Battery size (kWh) for popular EVs with an estimated out-of-warranty pack replacement cost, and a reminder that most replacements are covered by warranty.

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EV Connector Types

Compare US EV charging connectors: J1772, CCS1, NACS (J3400), and CHAdeMO, by charging type, max power, which cars use them, and where each stands.

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022 charts

Home Energy

Appliance Wattage

Typical running and starting watts for common household appliances, and what each costs to run.

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Rates by Utility

What major US utilities charge residential customers per kWh and the average monthly bill for each: effective rates from EIA revenue and sales data.

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035 charts

Electrical

Appliance Amperage

Typical amp draw for 145 household appliances at 120 V and 240 V: running and startup amps, circuit fit, and breaker size for each.

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Wire Size by Amps

What size wire for 15 to 200 amps: NEC copper and aluminum sizes per breaker and service rating, with voltage-drop distance limits.

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Wire & Breaker Sizes

NEC wire gauge and breaker sizing reference: ampacity by AWG and the right breaker and copper wire for common loads.

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Ground Wire Size

NEC equipment grounding conductor by breaker size (Table 250.122) and grounding electrode conductor by service size (Table 250.66), copper and aluminum.

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NEMA Plug Chart

Every common NEMA plug and outlet (5-15, 14-50, 6-50, TT-30 and more) with voltage, amps, wiring, breaker size, and what each is used for.

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041 charts

Learn

Glossary

Plain-English definitions of EV charging, electrical (NEC), heat pump, energy, and finance terms used across our calculators and guides.

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Need your exact number?

The charts give the common cases. The calculators work it out for your load, your run and your rate.

Watts to ampsLevel 2 breaker sizeElectricity costAll calculators