Syed Waleed
50 new online tools
Added 12 November 2026. Browse by category and try a worked example on any tool page.
Converters
Cubic Yards to Cubic Feet
Convert yd³ to ft³.
ConvertersDegrees to Radians
Convert ° to rad.
ConvertersImperial Gallons to Liters
Convert imp gal to L.
ConvertersImperial MPG to Liters per 100 Kilometers
Convert imperial mpg to L/100 km.
ConvertersInches of Mercury to Hectopascals
Convert inHg (conventional) to hPa.
ConvertersKilojoules to Kilocalories
Convert kJ to kcal (thermochemical).
ConvertersMetric Tonnes to Pounds
Convert t to lb.
ConvertersMillimeters of Mercury to Kilopascals
Convert mmHg (conventional) to kPa.
ConvertersOunces to Grams
Convert oz (avoirdupois) to g.
ConvertersRadians to Turns
Convert rad to turn.
ConvertersSquare Feet to Square Meters
Convert ft² to m².
ConvertersSquare Inches to Square Centimeters
Convert in² to cm².
ConvertersSquare Miles to Square Kilometers
Convert mi² to km².
ConvertersStones to Kilograms
Convert st to kg.
ConvertersUS MPG to Liters per 100 Kilometers
Convert US mpg to L/100 km.
ConvertersUS Pints to Milliliters
Convert US pt to mL.
ConvertersUS Quarts to Liters
Convert US qt to L.
ConvertersUS Short Tons to Kilograms
Convert short ton to kg.
ConvertersUS Tablespoons to Milliliters
Convert US tbsp to mL.
ConvertersUS Teaspoons to Milliliters
Convert US tsp to mL.
Calculators
Aquarium Water Volume
Estimate water volume in a rectangular aquarium from the inside dimensions.
CalculatorsCompost Bin Volume
Estimate volume in a rectangular compost bin.
CalculatorsDelivery Route Time Estimate
Estimate route time from driving distance, speed and minutes per stop.
CalculatorsDrainage Fall Calculator
Find the vertical drop needed for a chosen slope and horizontal run.
CalculatorsEthernet Transfer Estimate
Estimate transfer time from decimal file size, link rate and efficiency.
CalculatorsIrrigation Runtime Calculator
Estimate watering time for emitters with the same flow rate.
CalculatorsLED Strip Power Budget
Estimate strip wattage and add a chosen amount of power headroom.
CalculatorsMeeting Overlap by Hours
Find overlap between two work windows expressed on the same 24-hour clock.
CalculatorsPackaging Box Count
Calculate cartons needed, unused slots and how many cartons are full.
CalculatorsPotting Mix Batch Calculator
Split a target volume into three ingredients using parts by volume.
CalculatorsRainwater Catchment Estimate
Estimate roof runoff using rainfall, catchment area and capture efficiency.
CalculatorsRound Rug Coverage
Compare a circular rug area with a rectangular room area.
CalculatorsSolar Panel Area Estimate
Estimate physical area from panel dimensions and quantity, excluding spacing.
CalculatorsTank Drain Time Estimate
Estimate time to empty a tank at a constant outflow.
CalculatorsTeam Shift Coverage
Calculate staffed hours, required hours and the remaining gap.
Text Tools
Add Prefix to Each Line
Add a prefix to each nonblank line.
Text ToolsAdd Quotes Around Lines
Wrap every nonblank line with a custom opening and closing character.
Text ToolsAdd Suffix to Each Line
Append a suffix to each nonblank line.
Text ToolsCount Text Occurrences
Count case-sensitive, nonoverlapping occurrences of a literal string.
Text ToolsExtract Every Nth Line
Keep every Nth line, including blank lines in the count.
Text ToolsFind Lines by Prefix
Return lines that start with the specified text. Matching is case sensitive.
Text ToolsFind Lines by Suffix
Return lines that end with the specified text. Matching is case sensitive.
Text ToolsKeep First N Lines
Copy the first N lines, counting blank lines as lines.
Text ToolsLongest Line Finder
Report the longest line length and the first line that matches it.
Text ToolsNumber Nonblank Lines
Add consecutive numbers to nonblank lines, with a custom starting number.
Text ToolsRemove Blank Lines
Delete empty and whitespace-only lines.
Text ToolsReplace Line Breaks with Separator
Join all lines using a literal separator.
Text ToolsSplit Text on a Separator
Split text using a literal separator and put each item on a new line.
Text ToolsText Line Duplicate Report
List repeated nonblank lines with exact match counts.
Text ToolsTrim Line Edges
Remove whitespace at the start and end of each line while retaining line breaks.