103 working tools across 8 categories. Each tool has its own page and shareable link.
Turnkey build cost with material & labour split, editable rates, your currency.
Cement, sand, aggregate & water for any nominal mix (M5-M25).
How many 50 kg cement bags for a concrete volume.
Rebar weight from diameter, length and bar count.
Bricks, cement and sand for a wall - with door/window deductions.
Cement & sand for wall plaster.
Tiles needed for a floor with wastage.
Paint and primer litres with pack sizes, by area and coats.
Concrete and materials for a slab.
Concrete for rectangular columns.
Concrete for rectangular beams.
Earthwork volume for foundations.
Litres for rectangular or circular tanks.
Sheets for a roof with overlap allowance.
Approx. concrete for a straight flight.
Convert sand volume to tonnes/kg.
Convert aggregate volume to tonnes/kg.
Approx. chemical quantity for soil treatment.
Concrete + steel cost for RCC work at local rates.
Marla, Kanal, Acre, Bigha (regional), Cent, Guntha & metric.
Cement & sand for mortar by volume and mix ratio.
Blocks and mortar for a block wall.
Putty bags for a wall area by coats.
Indicative steel weight from concrete volume by member type.
Convert between carpet, built-up and super built-up area.
Risers, treads and going for a floor height (Blondel rule) with NBC 2016 checks.
Gypsum/POP boards for a room with wastage.
Bricks, pillars and plaster for a compound wall.
Right AC size for your room - tonnage by size, sunlight and floor.
Rooftop solar kWp, panels, roof area and optional battery backup from your monthly units.
Rolls for a room by perimeter, height and pattern repeat - standard strip method.
How many bulbs/fixtures a room needs - lumens by room type and size.
Metres of curtain fabric from track width, drop, fullness and pattern repeat.
Land area for rectangle, triangle or trapezoid plots - with sq ft, sq yd, acre and cent.
Ramp length, width, landings and handrails for a rise - NBC 2016 reference table.
Built-up plinth area for up to 3 floors from external wall-to-wall dimensions.
Plywood sheets, laminate, hinges and channels for a wardrobe - editable local rates.
mm, cm, m, km, inch, ft, yard, mile.
m², ft², yd², acre, hectare, marla, kanal, cent.
mg, g, kg, quintal, tonne, lb, oz.
ml, L, m³, ft³, US/UK gallons.
m/s, km/h, mph, knot, ft/s.
KB, MB, GB, TB and bits.
Pa, kPa, bar, psi, atm, mmHg.
J, kJ, kWh, cal, kcal, BTU.
W, kW, hp, PS.
Degrees, radians, gradians, arcmin/sec.
ms, seconds, minutes, hours, days, weeks, years.
Celsius, Fahrenheit, Kelvin.
Loan EMI, total interest and payment schedule totals.
Projected corpus from monthly investing.
Add or remove GST from a price.
SI on a principal over time.
Yearly compounding growth.
FD maturity with quarterly or yearly compounding.
RD maturity for monthly deposits, quarterly compounding.
Sale price and savings from a discount %.
Future cost of today’s money at an inflation rate.
Gross and net rental yield on a property from price, rent and expenses.
Total return on a property: registration, rent, appreciation and annualized ROI.
X% of Y, X as % of Y, % change, increase.
Area, perimeter, volume & surface-area formulas - quick shape reference.
Derivative rules and common derivatives - quick reference.
Antiderivatives and integral rules - quick reference.
Area, perimeter, volume & surface area for 11 shapes - pick a shape, enter its dimensions.
Derivative of an expression in x, with the rule used and an optional numeric value at a point.
Indefinite and definite integrals for polynomials, powers, trig, exp and log forms, with the antiderivative shown.
Journey time from distance and average speed - solve time, distance or speed.
Profit or loss and percentage from cost and selling price - or solve for a price.
Original price before a discount or markup, or the % change between two amounts.
Everyday add, subtract, multiply, divide and percentages. Keyboard friendly.
Exact age in years, months, days.
Days, weeks, months between two dates.
Ratios, standard angles, identities and triangle laws - quick reference.
sin, cos, tan values, inverse angles and right triangles - step-by-step working.
Shrink JPG/PNG/WebP file size in your browser.
Resize an image to exact pixel dimensions.
Convert between PNG, JPEG and WebP.
Crop an image by pixel position and size.
Rotate 90/180/270° or flip horizontally/vertically.
Combine JPG/PNG images into one PDF.
Extract editable text from a photo or scan - English and Hindi, on your device.
Merge multiple PDF files into one.
Extract pages (e.g. 1-3,5) into a new PDF.
Convert .docx documents into PDF files.
Turn PDF text into an editable .docx document.
Shrink and resize logos while keeping transparent backgrounds.
Make a clean starter logo from ready-made layouts - no sign-up, no watermark.
Pretty-print and validate JSON with error positions.
Encode or decode Base64 text (UTF-8 safe).
Test regular expressions with flags and match listing.
Percent-encode or decode URLs and query strings.
SHA-1, SHA-256 and SHA-512 digests of any text.
Download speed and ping with a small test you start yourself. Approximate result.
Random v4 UUIDs, one or many at once.
Epoch seconds/ms to dates and back.
Word counts and keyword density for content.
Preview how your title and description look in search.
Build a sitemap.xml from a list of URLs.
Create a robots.txt with allow/disallow rules.
Paste page HTML: title, description, h1, viewport, alt text and more quick checks.
Paste your robots.txt: syntax, group and sitemap-line checks with common mistakes flagged.
Paste sitemap XML: URL count, duplicates, https and size-limit checks. Safe static parse.