Calculators
Schedule forecast (time EAC) API
Forecast the project finish duration from schedule performance — SPI = EV/PV, forecastDuration = plannedDuration / SPI, scheduleSlip = forecast - planned — with percent slip and a slip-severity rating. Answers 'when will the project finish at this pace','how much schedule slip','forecast duration from SPI'.
Price$0.01per request
MethodPOST
Route/v1/calc/pm-schedule-forecast
StatusLive
MIME typeapplication/json
Rate limit120/minute
CacheNo cache
calcpmscheduleforecastevmspidurationslip
API URL
Integration docshttps://x402.hexl.dev/v1/calc/pm-schedule-forecastExample request
{
"earnedValue": 800,
"plannedValue": 1000,
"plannedDuration": 30
}Example response
{
"earnedValue": 800,
"plannedValue": 1000,
"plannedDuration": 30,
"spi": 0.8,
"forecastDuration": 37.5,
"scheduleSlip": 7.5,
"slipPct": 25,
"rating": "major-slip",
"formula": "forecastDuration = plannedDuration / SPI"
}Input schema
{
"type": "object",
"required": [
"earnedValue",
"plannedValue",
"plannedDuration"
],
"properties": {
"earnedValue": {
"type": "number",
"examples": [
800
]
},
"plannedValue": {
"type": "number",
"examples": [
1000
]
},
"plannedDuration": {
"type": "number",
"description": "Baseline duration (days/weeks/months)",
"examples": [
30
]
}
}
}Output schema
{
"type": "object",
"additionalProperties": true
}