Developer Utilities
Small developer utilities that save a trip to a random website. Encode and decode Base64, explain a regex, build UTM links, generate QR codes and vCards, and more — the everyday helpers. Free in your browser, and available by API when you need them in a script.
Developer Utilities
Minutes to days converter
days, hours and leftover minutes
POST /conv/minutes-to-days$0.002Developer Utilities
Minutes to hours converter
decimal hours and h:m, free
POST /conv/minutes-to-hours-converter$0.002Developer Utilities
Minutes to seconds converter
exact ×60 factor, free
POST /conv/minutes-to-seconds-converter$0.002Developer Utilities
Minutes to years conversion
525600 minutes per year, free
POST /conv/minutes-to-years-conversion$0.002Developer Utilities
ML to cc converter
1 ml equals 1 cc exactly, free
POST /conv/ml-to-cc-converter$0.002Developer Utilities
ML to KG converter
milliliters to kilograms by density, free
POST /conv/ml-to-kg$0.002Developer Utilities
ML to lbs converter
milliliters to pounds by density, free
POST /conv/ml-to-lbs$0.002Developer Utilities
ML to µL conversion
1 ml equals 1000 µl exactly, free
POST /conv/ml-to-ul-conversion$0.002Developer Utilities
Millimeters converter
mm to inches, cm and meters, free
POST /conv/mm-millimeters$0.002Developer Utilities
MM to ATM conversion
millimetres of water to atm, free
POST /conv/mm-to-atm-conversion$0.002Developer Utilities
MM to km converter
exact 1000000 factor, free
POST /conv/mm-to-km-conversion$0.002Developer Utilities
MM to m conversion
millimeters to meters ÷ 1000, free
POST /conv/mm-to-m-conversion$0.002Developer Utilities
MPa conversion
megapascals to psi, bar, and kPa, free
POST /conv/mpa-conversion$0.002Developer Utilities
MPa to PSI converter
megapascals times 145.038, free
POST /conv/mpa-to-psi-conversion$0.002Developer Utilities
m/s to km/h converter
exact 3.6 factor, free in browser
POST /conv/ms-to-kmh$0.002Developer Utilities
Ms to seconds conversion
milliseconds divided by 1000, free
POST /conv/ms-to-seconds-conversion$0.002Developer Utilities
Newton-meter converter
N·m to ft-lb and in-lb, free
POST /conv/newton-meter$0.002Developer Utilities
Nickels to dollars converter
5 cents each, free
POST /conv/nickels-to-dollars$0.002Developer Utilities
NM converter
nanometers to frequency in hertz, free
POST /conv/nm-converter$0.002Developer Utilities
Nm to in-lbs converter
newton-meters × 8.8507, free
POST /conv/nm-to-in-lbs$0.002Developer Utilities
NM to m conversion
nanometers to meters, exact SI, free
POST /conv/nm-to-m-conversion$0.002Developer Utilities
Number to billion converter
divide by 1,000,000,000
POST /conv/number-to-billion-converter$0.002Developer Utilities
Ounce to kg converter
exact avoirdupois factor, free
POST /conv/ounce-to-kg-converter$0.002Developer Utilities
Ounces to pounds converter
divide by 16, free
POST /conv/ounces-to-pounds-converter$0.002Developer Utilities
Oz to cc converter
1 US fl oz equals 29.5735 cc, free
POST /conv/oz-to-cc-converter$0.002Developer Utilities
Pa to PSI converter
1 Pa = 0.000145038 psi, free
POST /conv/pa-to-psi-converter$0.002Developer Utilities
Pascal conversion
Pa to kPa, bar, psi and atm, free
POST /conv/pascal-conversion$0.002Developer Utilities
Pint to pound converter
US pints to pounds by density, free
POST /conv/pint-to-pound$0.002Developer Utilities
Pints to gallons converter
8 pints equal 1 US gallon, free
POST /conv/pints-to-gallons-converter$0.002Developer Utilities
Pounds and ounces
convert ounces to lb plus leftover oz
POST /conv/pounds-ounces$0.002Developer Utilities
Pounds to lbs converter
exact identity factor, free
POST /conv/pounds-to-lbs$0.002Developer Utilities
Pounds to stone converter
divide by 14, free online
POST /conv/pounds-to-stone$0.002Developer Utilities
PPM to mg/L converter
assuming water density, free
POST /conv/ppm-to-mgl-converter$0.002Developer Utilities
Pressure unit conversion
Pa, kPa, bar, psi, and atm, free
POST /conv/pressure-unit-conversion$0.002Developer Utilities
PSI to inches of water conversion
factor 27.7076, free
POST /conv/psi-to-inches-of-water-conversion$0.002Developer Utilities
Psig to psia converter
gauge to absolute, free in browser
POST /conv/psig-to-psia-conversion$0.002Developer Utilities
Quantity converter
convert compatible units of the same kind
POST /conv/quantity-converter$0.002Developer Utilities
Quarters to dollars converter
25 cents each, free
POST /conv/quarters-to-dollars$0.002Developer Utilities
Quarts to pounds converter
US quarts to pounds by density, free
POST /conv/quarts-to-pounds$0.002Developer Utilities
Radiation converter
Bq, Ci, Gy, rad, Sv, rem, free
POST /conv/radiation-converter$0.002Developer Utilities
RMS to peak watts converter
Ppeak = Prms × √2, free
POST /conv/rms-to-watts$0.002Developer Utilities
Roman numerals
convert 1–3999 to I–MMMCMXCIX, free
POST /conv/roman-numerals$0.002Developer Utilities
Scale conversion calculator
real-world length to 1:N, free
POST /conv/scale-conversion$0.002Developer Utilities
Seconds converter
minutes, hours and days, free
POST /conv/seconds-converter$0.002Developer Utilities
Seconds to hours converter
fast duration calculator
POST /conv/seconds-to-hours-converter$0.002Developer Utilities
Post Office MIS calculator
monthly income from deposit and rate
POST /fin/post-office-monthly-income-scheme$0.002Developer Utilities
Powerball calculator
jackpot odds and expected value, free
POST /fin/powerball$0.002Developer Utilities
Pre- and post-money valuation
from investment and one given value
POST /fin/pre-and-post-money-valuation$0.002Developer Utilities
Price per sqft calculator
unit price from sale and floor area
POST /fin/price-per-sqft$0.002Developer Utilities
Price per square meter calculator
property unit price, free
POST /fin/price-per-square-meter$0.002Developer Utilities
Price quantity calculator
total from unit price and quantity
POST /fin/price-quantity$0.002Developer Utilities
Price to sales ratio calculator
P/S from market cap, free
POST /fin/price-to-sales-ratio$0.002Developer Utilities
Private savings calculator
S = Y − T − C from national income
POST /fin/private-savings$0.002Developer Utilities
Profit calculator
amount from total revenue minus total costs
POST /fin/profit$0.002Developer Utilities
PVGO calculator
present value of growth opportunities
POST /fin/pvgo$0.002Developer Utilities
PVIFA calculator
present value interest factor of an annuity
POST /fin/pvifa$0.002Developer Utilities
Rate of pay calculator
hourly rate from total pay and hours
POST /fin/rate-of-pay$0.002Developer Utilities
Real estate commission calculator
agent fee from sale price
POST /fin/real-estate-commission$0.002Developer Utilities
Real estate commission with VAT calculator
sale, rate, tax, free
POST /fin/real-estate-commission-vat$0.002Developer Utilities
Receivables turnover calculator
net credit sales over average AR
POST /fin/receivables-turnover$0.002