Telecom OSP Design Calculator

Outside plant material from route length and subscriber count.

Route length (km)

Fiber count

Subscriber drops

Placement Method

Conduit size (inches)

Innerducts per conduit

Tab to move between fields

Total project cost ($)

$596,192.00

≈ 14 Teslas

Cost per route-km ($)$59,619.00

Cable cost ($)$6,440.00

Construction cost ($)$350,000.00

Splice closures4

Total fiber splices384

Handholes / pull boxes50

Distribution pedestals34

Pole attachments0

Conduit fill ratio (%)12.2

Innerduct fill (%)31.3

Route length (mi)6.21

Route Length (ft)32,808.4

How to Use This Calculator

Enter the route length in km and the number of splice points.
Set the fiber count and the cable type (aerial, buried, direct-buried, or conduit).
Input the cost per meter for each installation method.
Review the Total Material Cost, Total Labor Cost, and Total OSP Design Cost.
Use the Cost Per km output to benchmark against regional market rates for telecom construction.

How the result changes with Route length (km)

Route length (km): Total fiber route length in kilometers.
Fiber count: Number of fibers in the cable. Common: 12, 24, 48, 96, 144, 288, 432, 864.
Subscriber drops: Number of individual subscriber drop locations along the route.
Placement Method: Select cable placement method
Conduit size (inches): Conduit inner diameter in inches. Common: 1.25, 2, 4 inch.
Innerducts per conduit: Number of innerducts installed inside each conduit for future capacity.

Total project cost ($): Total materials + construction cost for the OSP route.
Cost per route-km ($): Average cost per kilometer of route.
Cable cost ($): Fiber optic cable material cost.
Construction cost ($): Trenching, boring, or aerial placement labor.
Splice closures: Number of splice closure locations along the route.
Total fiber splices: Total individual fusion splices needed.
Handholes / pull boxes: Underground access points for cable pulling and maintenance.
Distribution pedestals: Above-ground housings for subscriber drop access.
Pole attachments: Number of utility pole attachment points (aerial only).
Conduit fill ratio (%): Cable area vs. conduit area. NEC max: 40% single cable, 25% multiple.
Innerduct fill (%): Cable fill percentage within a single 1.25-inch innerduct.
Route length (mi): Route length converted to miles.

Identify Input Parameters
4 parameters
Route length (km) = 10, Fiber count = 96, Subscriber drops = 200, Placement Method = 1 = 6 input(s) provided
Calculate Total project cost
Total project cost = totalMaterialCost + totalConstructionCost
596192 = $596,192
Calculate Cost per route-km
Cost per route-km = totalProjectCost / routeLengthKm
59619 = $59,619
Calculate Cable cost
Cable cost = cableCostPerKm * routeLengthKm
6440 = $6,440