Estimator suite
Ten calculators forcivil and river works.
Put in your dimensions and get quantities, a cost breakdown and a total — live, as you type. Every unit rate is visible and editable, so you can price against your own schedule rather than ours, then send the working straight to us.
Rate settings
Every figure the calculators use, in one place. Changes are saved in this browser only and apply to all ten calculators at once.
SkyShilp Construction India Private Limited · Chaboti Bypass, North Lakhimpur, 787031, Assam, India · +91 60012 14545 · info@skyshilp.in
CALC / 01
Building Construction Cost Estimator
All-in construction cost for a residential, institutional or commercial building, from an area take-off and a specification tier, adjusted for how far the site is from a supply chain.
Cost = Built-up area × Floors × Rate per sq ft × Location factor × Height factor Height factor = 1 + 0.02 × (Floors − 1)
Estimated cost
₹0
Quantity breakdown
Cost breakdown
[ Indicative only ] These figures are budgetary estimates produced from editable unit rates. They are exclusive of site conditions, statutory approvals, testing, taxes where not shown, and price escalation. A formal quotation follows a site survey.
SkyShilp Construction India Private Limited · Chaboti Bypass, North Lakhimpur, 787031, Assam, India · +91 60012 14545 · info@skyshilp.in
CALC / 02
Concrete & Material Calculator
Cement, sand, aggregate and water for a nominal-mix concrete pour, by element dimensions or by a volume you already know.
Dry volume = Wet volume × 1.54 Cement = Dry volume × (1 ÷ Σparts) × 1440 kg/m³ ÷ 50 kg per bag Sand & aggregate = Dry volume × (part ÷ Σparts)
Excludes shuttering, reinforcement and pumping. Reinforcement is estimated in calculator 08.
Estimated cost
₹0
Quantity breakdown
Cost breakdown
[ Indicative only ] These figures are budgetary estimates produced from editable unit rates. They are exclusive of site conditions, statutory approvals, testing, taxes where not shown, and price escalation. A formal quotation follows a site survey.
SkyShilp Construction India Private Limited · Chaboti Bypass, North Lakhimpur, 787031, Assam, India · +91 60012 14545 · info@skyshilp.in
CALC / 03
Earthwork & Excavation Estimator
Bank volume, bulked volume, tipper trips, machine hours and disposal cost for bulk excavation in any class of soil.
Bank volume = L × W × D · Loose volume = Bank × bulking factor Trips = ⌈Loose volume ÷ tipper capacity⌉ · Hours = Bank ÷ output per hour
Estimated cost
₹0
Quantity breakdown
Cost breakdown
[ Indicative only ] These figures are budgetary estimates produced from editable unit rates. They are exclusive of site conditions, statutory approvals, testing, taxes where not shown, and price escalation. A formal quotation follows a site survey.
SkyShilp Construction India Private Limited · Chaboti Bypass, North Lakhimpur, 787031, Assam, India · +91 60012 14545 · info@skyshilp.in
CALC / 04
Riverbank Protection / Geo-Bag Estimator
Our flagship estimator. Bag counts, filter fabric, sand fill, labour and plant for a geo-bag revetment with a launching apron, from the geometry of the reach.
Slope length = H × √(1 + n²) · Area = (Slope length + Apron width) × Reach Protection volume = Area × thickness · Bags = ⌈Volume ÷ bag fill volume × (1 + overlap)⌉
Filter fabric is taken at 10% overlap and sand fill at 5% spillage. Boulder pitching and porcupine screens are priced separately.
Estimated cost
₹0
Quantity breakdown
Cost breakdown
[ Indicative only ] These figures are budgetary estimates produced from editable unit rates. They are exclusive of site conditions, statutory approvals, testing, taxes where not shown, and price escalation. A formal quotation follows a site survey.
SkyShilp Construction India Private Limited · Chaboti Bypass, North Lakhimpur, 787031, Assam, India · +91 60012 14545 · info@skyshilp.in
CALC / 05
Flood Embankment / Levee Volume
Cross-sectional area, compacted and borrow volumes, turfing area and cost for a trapezoidal flood embankment.
Base width = b + H(n₁ + n₂) · Area = H × (b + H(n₁ + n₂) ÷ 2) Compacted volume = Area × Length · Borrow volume = Compacted × 1.25
Estimated cost
₹0
Quantity breakdown
Cost breakdown
[ Indicative only ] These figures are budgetary estimates produced from editable unit rates. They are exclusive of site conditions, statutory approvals, testing, taxes where not shown, and price escalation. A formal quotation follows a site survey.
SkyShilp Construction India Private Limited · Chaboti Bypass, North Lakhimpur, 787031, Assam, India · +91 60012 14545 · info@skyshilp.in
CALC / 06
Road Construction Estimator
Layer-by-layer volumes and cost for a rural or intermediate-lane road. Choosing a road type loads its standard layer depths, which you can then edit.
Layer volume = Length × Width × Thickness · lower layers take the formation width, upper layers the carriageway width Total = Σ layers + shoulders, drainage & furniture (%)
This prices the pavement itself. Embankment and formation earthwork, land, utility diversion and major bridges are separate — use calculator 03 for the earthwork.
Estimated cost
₹0
Quantity breakdown
Cost breakdown
[ Indicative only ] These figures are budgetary estimates produced from editable unit rates. They are exclusive of site conditions, statutory approvals, testing, taxes where not shown, and price escalation. A formal quotation follows a site survey.
SkyShilp Construction India Private Limited · Chaboti Bypass, North Lakhimpur, 787031, Assam, India · +91 60012 14545 · info@skyshilp.in
CALC / 07
Brickwork & Plaster Calculator
Brick count, mortar, cement, sand and plaster for a masonry wall, with openings deducted and wastage allowed.
Masonry volume = (Wall area − openings) × thickness Bricks = Volume × 500 per m³ × 1.05 · Mortar = Volume − (bricks × 0.19 × 0.09 × 0.09) · Dry = wet × 1.33
Estimated cost
₹0
Quantity breakdown
Cost breakdown
[ Indicative only ] These figures are budgetary estimates produced from editable unit rates. They are exclusive of site conditions, statutory approvals, testing, taxes where not shown, and price escalation. A formal quotation follows a site survey.
SkyShilp Construction India Private Limited · Chaboti Bypass, North Lakhimpur, 787031, Assam, India · +91 60012 14545 · info@skyshilp.in
CALC / 08
Steel / TMT Reinforcement Estimator
Reinforcement weight and cost, either from a thumb rule for the element type or from a proper bar bending schedule.
Bar weight = d² ÷ 162 × length (m) × number of bars kg Thumb rule = Built-up area (sq ft) × kg per sq ft for the element
Estimated cost
₹0
Quantity breakdown
Cost breakdown
[ Indicative only ] These figures are budgetary estimates produced from editable unit rates. They are exclusive of site conditions, statutory approvals, testing, taxes where not shown, and price escalation. A formal quotation follows a site survey.
SkyShilp Construction India Private Limited · Chaboti Bypass, North Lakhimpur, 787031, Assam, India · +91 60012 14545 · info@skyshilp.in
CALC / 09
Project Budget Planner
Split a project value across the phases of the programme, then add contingency, GST and retention to see the gross outlay and the cash actually payable.
Phase amount = Value × (phase % ÷ Σ%) · percentages are rescaled if they do not sum to 100 Gross = (Value + Contingency) × (1 + GST) · Retention = (Value + Contingency) × r
Estimated cost
₹0
Quantity breakdown
Cost breakdown
[ Indicative only ] These figures are budgetary estimates produced from editable unit rates. They are exclusive of site conditions, statutory approvals, testing, taxes where not shown, and price escalation. A formal quotation follows a site survey.
SkyShilp Construction India Private Limited · Chaboti Bypass, North Lakhimpur, 787031, Assam, India · +91 60012 14545 · info@skyshilp.in
CALC / 10
Project Timeline & Manpower Estimator
Duration, crew composition, man-days and direct labour cost — with the Assam monsoon treated as lost calendar time rather than wished away.
Working months = Scope ÷ (output per crew-month × crews) × (24 ÷ working days) Duration = Working months + monsoon downtime ÷ 30.4 calendar days per month
Estimated cost
₹0
Quantity breakdown
Cost breakdown
[ Indicative only ] These figures are budgetary estimates produced from editable unit rates. They are exclusive of site conditions, statutory approvals, testing, taxes where not shown, and price escalation. A formal quotation follows a site survey.
Questions
What these numbers are, and what they are not.
Read this before you put a figure from this page into a budget document.
They are budgetary figures, typically good enough to decide whether a scheme is affordable and to prepare an indicative provision. They are not a quotation. Actual cost depends on site conditions, soil classification, access, the lead for materials, statutory approvals and the prevailing market at the time of tender. Expect a formal quotation, prepared after a site survey, to differ.
Every rate is an assumption seeded from FY 2025-26 market and schedule-of-rates levels for Assam and the North-East, and each is marked as such in the source file. They are not a published schedule of rates. Open the “Rate settings” panel to replace any of them with your own figures — the whole page recalculates immediately.
No. Overrides are saved in your own browser only, under the key skyshilp.rates.v1, and never leave your device. “Reset to defaults” clears them.
No, except in the Project Budget Planner where GST is an explicit line you control. Every other calculator shows cost before tax. Statutory approvals, land, design fees and price escalation are excluded throughout.
Yes. “Copy shareable link” gives you a URL that reopens the calculator with your exact figures. “Print / Save as PDF” prints just that calculator. “Copy summary” puts the whole working on your clipboard as plain text.
That the bank is cut back to the slope you enter, a geotextile filter is laid with 10% overlap, and sand-filled bags are placed to the thickness you specify on both the slope and the launching apron, with an overlap and wastage allowance on the bag count and 5% spillage on the sand. Boulder pitching, porcupine screens and dewatering are priced separately.
Because in Assam the monsoon decides the working year. Between roughly June and September a river-side site is often unreachable or unsafe, so those days are treated as lost calendar time rather than absorbed into an optimistic programme. Change the figure if your site says otherwise.
Send the estimate straight to us with the “Send this estimate to SkyShilp” button, or call the office on +91 60012 14545. We will visit the site, take levels and cross-sections, and issue a formal quotation against them.
Turn an estimate into a quotation.
Send us the working from any calculator above. We will check the assumptions against the actual site and come back with a formal price.