Construction and home tools
For building, renovating, buying or renting a home, grouped by stage of the job. Quantities are planning estimates: add a wastage margin and confirm them with your engineer or contractor.
Gathered from the Construction, Finance, Converters, Utility, Business, Legal and Math categories.
Concrete, bricks & steel
10 toolsFor the structure.
- Concrete Calculator (Slab, Footing, Column, Tube & Steps) Add up every slab, footing, column and step — then get m³, yd³, bags and truckloads.
- Concrete Mix Calculator — Cement, Sand & Aggregate (IS 456) Cement bags, sand and aggregate for M5–M20 concrete, checked against IS 456.
- Brick Calculator — Bricks, Mortar, Cement & Sand Bricks, mortar, cement and sand for any wall — IS 1077, UK or US brick sizes.
- Plaster & Screed Calculator Cement and sand for walls, ceilings and floor screeds, with IS 1661 thickness guidance.
- Rebar (TMT Steel) Weight Calculator Steel weight from bar size, length and count — IS 1786, D²/162 and US bar sizes.
- Concrete Mix Design Calculator (IS 10262:2019) Every IS 10262 step for an M10–M60 trial mix, checked against IS 456 durability limits.
Show all 10 Show fewer Concrete, bricks & steel tools
- Block Calculator — Concrete, CMU & AAC Blocks Blocks, mortar or adhesive and grout for any block wall — IS 2185 and US CMU sizes.
- Bar Bending Schedule (BBS) Calculator A complete BBS — shapes, cutting lengths, counts, laps and steel weight by diameter.
- Reinforcement Steel Quantity Estimator Quick rebar take-off for slabs and members, with the IS 456 limits checked.
- Structural Steel Weight Calculator (Plates, Pipes, Angles, Beams) IS 808 sections, plates, bars and tubes — kg per metre, per piece and for the whole list.
Finishes, roofs & outdoors
6 toolsFor surfaces, roofs, stairs and the garden.
- Paint Calculator Paint, primer and putty for any room or wall, with the tins to buy and the cost.
- Tile Calculator Tiles and boxes for floors and walls, with joints, layout waste and skirting.
- Roofing Calculator Roof area, squares and every material to order, for shingles or metal sheets.
- Stair Calculator Lay out a straight stair and check it against IRC, NBC or UK Part K limits.
- Gravel, Sand & Soil Calculator How much gravel, sand or soil to order — by volume, weight, brass or truckload.
- Excavation & Earthwork Calculator Dig volumes, swell, backfill and truckloads — trenches, pits and basements.
Electrical, water & cooling
3 toolsFor power, water and comfort.
- Water Tank Capacity Calculator Tank volume full or at any water depth, and the tank size your home needs.
- Electricity Bill & Appliance Cost Calculator Units, the bill and what each appliance costs — with your own tariff.
- AC Tonnage & BTU Calculator Find the AC size for a room — quick chart or a heat-gain estimate for hot climates.
Area & land
9 toolsFor rooms, plots and land units.
- Unit Converter Exact conversions for 14 kinds of units, with the formula and a full table.
- Area Calculator Area and perimeter of 22 flat shapes, with the formula, every step and a labelled diagram.
- Land Area Converter — Bigha, Guntha, Cent, Marla, Acre Land units by state, from official records — or your own local bigha.
- Liters to Gallons Converter Exact L ↔ gal, US or imperial, with quarts and pints, tank tables and price per gallon.
- Plot Area Calculator (Irregular Land) Measure the sides and a diagonal — get the area, a sketch and land units.
- Square Feet to Square Meters Converter Exact sq ft ↔ m², rooms in feet and inches, gaj, guntha and price per sq ft or per m².
Show all 9 Show fewer Area & land tools
- Acres to Hectares Converter Exact acre ↔ hectare with sq ft, m², guntha and cents, square-plot sides and farm tables.
- Area Converter Exact area conversions, a length × width helper and fixed Indian land units.
- Square Footage & Room Area Calculator Add up rooms and plots of any shape in sq ft, m², gaj or acres.
Buying, renting & home loans
14 toolsFor the money and paperwork of a home.
- EMI Calculator Monthly instalment, total interest and a full repayment schedule.
- Loan Calculator Find the EMI, loan amount, tenure or rate — and see what prepaying saves.
- Labour Attendance (Hajri) Register & Wage Sheet (India) Daily hajri, advances and the weekly payday for your site labour — kept on your phone. Pro tool
- Rent Agreement Generator Residential, commercial or leave and licence, with checks on registration and deposits. Pro tool
- Rent Receipt Generator A year of rent receipts in one go — monthly or quarterly, 1–3 per A4 page.
- Carpet Area Calculator (RERA) — Built-up & Super Built-up Carpet area as RERA defines it — and what the builder’s super area really means.
Show all 14 Show fewer Buying, renting & home loans tools
- Mortgage Calculator (PITI) Your full monthly house payment, when PMI ends, and what extra payments save.
- Stamp Duty & Registration Charges Calculator What the registry will cost — state presets with sources, or your own rates.
- House Construction Cost Calculator Your area × your rate, split into stages with a payment plan you can share.
- Rent Affordability Calculator The rent your income supports, the income a rent needs, and what a lease really costs.
- Daily Wage Calculator for Site Labour Days × rate + overtime − advances = what each worker gets, for one person or a crew.
- Daily Progress Report (DPR) Maker for Construction Sites A site daily progress report with BOQ progress, manpower and photos — a PDF in minutes. Pro tool
- Home Loan Tax Benefit Calculator Interest and principal by year, the deductions they give, and the tax saved per regime.
- Site Inspection Checklist & Snag List for Construction Tick through a pre-pour or handover checklist, photograph the snags and share a PDF. Pro tool
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Good to know
- All 42 tools run in your browser: what you open or paste is not uploaded.
- All of them keep working without a connection once loaded.
- Calculator results and templates are starting points for planning, not financial, tax, legal or engineering advice. Check the method and assumptions on each tool’s page.
- Nothing to install and no account. 38 of the 42 tools are free to use without a limit; the other 4 are Pro tools, which can be tried free every day, and a pass that unlocks them lifts that daily limit.
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