# calc.engineer Power API

**Canonical:** https://apis.io/apis/calc-engineer/calc-engineer-power-api/  
**Provider:** calc.engineer — https://apis.io/providers/calc-engineer/  
**Base URL:** https://calc.engineer  
**Documentation:** https://calc.engineer/api/docs

calc.engineer Power API is one of 9 APIs that [calc.engineer](https://apis.io/providers/calc-engineer/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Power. The published artifact set on APIs.io includes an OpenAPI specification.

The power API from calc.engineer — 15 operation(s) for power.

## Operations (30)

| Method | Path | Summary |
|---|---|---|
| GET | `/api/battery_life` | Metadata for battery_life |
| POST | `/api/battery_life` | Calculates battery runtime and energy capacity given cell capacity in mAh… |
| GET | `/api/wire_gauge` | Metadata for wire_gauge |
| POST | `/api/wire_gauge` | Determines the minimum AWG (American Wire Gauge) conductor size for a given… |
| GET | `/api/solar_sizing` | Metadata for solar_sizing |
| POST | `/api/solar_sizing` | Sizes an off-grid solar power system by calculating the number of panels and… |
| GET | `/api/ups_runtime` | Metadata for ups_runtime |
| POST | `/api/ups_runtime` | Estimates UPS (Uninterruptible Power Supply) backup runtime from battery… |
| GET | `/api/mah_to_wh` | Metadata for mah_to_wh |
| POST | `/api/mah_to_wh` | Converts battery capacity from milliamp-hours (mAh) to watt-hours (Wh)… |
| GET | `/api/watts_to_amps` | Metadata for watts_to_amps |
| POST | `/api/watts_to_amps` | Converts electrical power in watts to current in amps (and milliamps) for a… |
| GET | `/api/voltage_drop` | Metadata for voltage_drop |
| POST | `/api/voltage_drop` | Calculates voltage drop across a conductor run given current, wire length, AWG… |
| GET | `/api/battery_charge_time` | Metadata for battery_charge_time |
| POST | `/api/battery_charge_time` | Estimates battery charge time given capacity in mAh, charge current in mA… |
| GET | `/api/solar_load_audit` | Metadata for solar_load_audit |
| POST | `/api/solar_load_audit` | Calculates total daily energy consumption from an appliance list — the critical… |
| GET | `/api/solar_roi` | Metadata for solar_roi |
| POST | `/api/solar_roi` | Calculates solar system return on investment, payback period, and levelized… |
| GET | `/api/battery_autonomy` | Metadata for battery_autonomy |
| POST | `/api/battery_autonomy` | Calculates how many days a battery bank can sustain loads without solar input… |
| GET | `/api/string_sizing` | Metadata for string_sizing |
| POST | `/api/string_sizing` | Calculates optimal solar panel string and MPPT configuration based on panel… |
| GET | `/api/generator_offset` | Metadata for generator_offset |
| POST | `/api/generator_offset` | Compares total cost of ownership between a fuel generator and a solar+battery… |
| GET | `/api/wire_ampacity` | Metadata for wire_ampacity |
| POST | `/api/wire_ampacity` | Determine minimum wire gauge using NEC Table 310.16 ampacity ratings with full… |
| GET | `/api/inverter_sizing` | Metadata for inverter_sizing |
| POST | `/api/inverter_sizing` | Size a DC-to-AC inverter for off-grid solar, battery backup, or mobile power… |

## Machine-readable artifacts (1)

- **OpenAPI** — https://artifacts.apis.io/calc-engineer/openapi/calc-engineer-power-api-openapi.yml

## Other calc.engineer APIs (8)

- [calc.engineer Auth API](https://apis.io/apis/calc-engineer/calc-engineer-auth-api/)
- [calc.engineer Catalog API](https://apis.io/apis/calc-engineer/calc-engineer-catalog-api/)
- [calc.engineer Docs API](https://apis.io/apis/calc-engineer/calc-engineer-docs-api/)
- [calc.engineer General API](https://apis.io/apis/calc-engineer/calc-engineer-general-api/)
- [calc.engineer Homelab API](https://apis.io/apis/calc-engineer/calc-engineer-homelab-api/)
- [calc.engineer Mesh API](https://apis.io/apis/calc-engineer/calc-engineer-mesh-api/)
- [calc.engineer Pcb API](https://apis.io/apis/calc-engineer/calc-engineer-pcb-api/)
- [calc.engineer Rf API](https://apis.io/apis/calc-engineer/calc-engineer-rf-api/)

## Tags

Power

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/calc-engineer/calc-engineer-power-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/calc-engineer/.