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🏠 Home, food & hobbiesFree
Grams to cups converter
250 g of all-purpose flour is 2 US cups, because flour is set at 125 g per cup. Enter the grams and pick the ingredient, from sugar and butter to honey or oats…
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mL to cups converter
A cup is 236.588 mL in the US, 250 mL in metric recipes and 284.131 mL in older British cookbooks: pick the one your recipe means and convert millilitres to…
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Oven temperature converter
180 °C is 356 °F, a moderate oven and gas mark 4: enter a Celsius or Fahrenheit number, or a phrase such as hot oven, and see every form at once.
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Cooking ounces to grams converter
One weight ounce is exactly 28.349523125 g, so 8 oz of chocolate is 226.796185 g: convert ounces to grams or back for recipes, prep sheets and dual-unit cards.
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Quarts to liters converter
A US quart is 0.946352946 L and an imperial quart 1.1365225 L, nearly a fifth more: choose the quart your recipe uses and convert to liters or back without…
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Recipe scaler
Multiply every line of an ingredient list by the same number: doubling 250 g of flour, 100 g of sugar, 2 eggs and 1 teaspoon of salt gives 500, 200, 4 and 2…
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Rice cups to grams converter
One cup of raw white rice weighs 185 g and one cup of cooked rice 158 g, so this converter asks which one you have before turning cups into grams or grams back…
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Sugar cups to grams converter
One cup of granulated sugar is 200 grams, packed brown sugar 220 and powdered sugar 120. Pick the sugar, enter cups or grams, and get the other measure for your…
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Tablespoons to ml converter
Two US tablespoons are 29.5735295625 ml, while a metric tablespoon holds 15 ml and an Australian one 20 ml.
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US to metric cooking converter
One US cup is 236.59 ml and 8 ounces of weight are 226.80 g. Convert any line of an American recipe to milliliters, liters, grams or kilograms with one fixed…
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Yeast conversion converter
7 g of active dry yeast equals 5.25 g of instant or 21 g of fresh yeast. Enter the amount and kind your recipe calls for and get all three equivalents in the…
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📅 Dates & timeFree
Add days to a date
Add or subtract a number of calendar days and get the exact day it lands on: 1 March 2024 plus 10 days is 11 March 2024.
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Add years to a date
Add or subtract whole years and get the new date, so 15 March 2024 plus 2 years is 15 March 2026. A leap day lands on 28 February in common years, so 29…
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Birth flower by month
Pick a birth month and get its traditional flower, an alternate and what it stands for: June is the rose, with honeysuckle as alternate, a symbol of love…
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Chinese zodiac element calculator
2024 is Jia-Chen, the Yang Wood Dragon, year 41 of the 60-year cycle that opened with the Wood Rat of 1984.
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Countdown between two dates
From midnight UTC on 1 January 2026 to 01:01:01 on 2 January there are 1 day, 1 hour, 1 minute and 1 second, or 90061 seconds.
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Day of year to date converter
Day 61 of 2024 is 1 March, because 2024 is a leap year with 366 days. Enter a year and a day number to get the calendar date, whether the year is leap and how…
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Day of the week calculator
25 July 2026 falls on a Saturday, ISO weekday 6. Enter any date to get the weekday's full name, its short label and its number, with Monday counted as 1 and…
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Day of the year calculator
1 March 2024 is day 61 of the year; in a common year it would be day 60, since 2024 is a leap year.
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Days in a month calculator
February 2024 has 29 days, because 2024 is a leap year. Enter a year and a month from 1 to 12 to get the exact number of days, the month's name and whether the…
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Days left in the year
On 25 July 2026, 159 full days remain until 31 December: the date is day 206 of 365. Enter any calendar date to get the days left in its year, its day number…
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Decade and century finder
2024 belongs to the 2020s, which run from 2020 to 2029, and to the 21st century, from 2001 to 2100.
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Dominical letter calculator
2024 has the dominical letters G and F: G marks the Sundays of January and February, F those from March onward, because 1 January fell on a Monday.
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Doomsday rule calculator
4 July 2024 was a Thursday, and so was that year's doomsday, shared by easy dates like 4 April, 6 June and 12 December.
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Orthodox Easter date calculator
Orthodox Easter 2024 fell on 5 May: the Julian tables give 22 April, and the 13-day gap between the calendars moves it into May.
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Friday the 13th finder
Enter a year and see every Friday the 13th in it: 2026 has three, on 13 February, 13 March and 13 November.
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Humanize duration
Paste a duration in seconds and get wording a person can read at a glance: 183840 seconds is 2 days 3 hours 4 minutes.
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Leap year checker
Enter a year and find out whether February has 29 days: 2024 is a leap year because it divides by 4 and not by 100, while 1900 is not and 2000 is.
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ISO weekday number
Enter a date and get its ISO weekday number, from 1 for Monday to 7 for Sunday: 2026-07-25 is a Saturday, so the answer is 6.
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Julian Day Number calculator
Turn any calendar date into its astronomical Julian Day Number: 2000-01-01 is day 2451545, with Modified Julian Day 51544 and a leap-year flag alongside.
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Last weekday of the month
Pick a year, a month and a weekday to get the date of its last occurrence: the last Friday of July 2026 is 2026-07-31.
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Leap years in a range
Enter two years and get every leap year between them, both ends included: from 2000 to 2024 there are 7, starting with 2000 and ending with 2024.
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Printable month calendar generator
Pick a year and a month to get a ready-to-print grid of weeks: February 2024 has 29 days, starts on a Thursday and fills 5 rows with Sunday-first weeks.
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Months between two dates
Enter two dates to get the whole months between them plus the leftover days: from 2024-01-15 to 2025-03-10 is 13 months and 23 days.
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Nth weekday of the month
The third Monday of March 2024 is the 18th, and the last Friday of February 2024 is the 23rd. Pick a year, a month, a weekday and first to fifth or last to date…
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ISO ordinal date converter
15 March 2024 is day 75 of the year, written 2024-075 in ISO ordinal form. Convert any calendar date into its day-of-year number and back, with leap years…
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Previous weekday occurrence
The last Monday before Friday 24 July 2026 is 20 July 2026, four days back. Enter a date and a weekday to get its most recent earlier occurrence; if the date…
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Calendar quarter finder
15 May 2024 falls in Q2, the quarter that runs from 1 April to 30 June 2024. Enter any date to get its calendar quarter, the first and last day of that block…
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Quarter start and end dates
Q1 of 2026 runs from 1 January to 31 March 2026. Pick a year and a quarter from 1 to 4 and get the exact first and last day, ready for report filters…
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Recurring dates generator
Every 7 days from 1 January to 26 February 2024 gives 9 dates, with the first and last both included.
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Season of the year calculator
Enter a date and a hemisphere to get its meteorological season: 15 July 2026 is summer in the north, while in the south July belongs to winter.
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US week number calculator
Find the US week number of any date, with weeks running Sunday to Saturday and week 1 holding 1 January: 15 March 2024 falls in week 11.
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Week start and end dates
Enter one day and get the first and last day of its week: Wednesday 3 January 2024 sits in the week from Monday 1 to Sunday 7 January.
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Weekday count in a year
Pick a weekday and a year to see how many times that day occurs: 2024 has 53 Mondays, because it is a leap year that starts on a Monday.
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Weekend days between two dates
January 2024 holds 8 weekend days, 4 Saturdays and 4 Sundays. Enter any two dates and get the same split for your own range, both ends included, for staffing…
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Weeks between two dates
January 1 to February 15, 2024 is 45 days: 6 whole weeks and 3 days left over. Enter any two dates to get the same split, handy for probation periods, notice…
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Year progress percentage
July 1, 2024 marks exactly 50% of the year: day 183 of 366, with 183 days still to go. Enter any date to feed a progress bar, an annual goal tracker or a…
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Zeller's congruence calculator
July 25, 2026 is a Saturday: Zeller's congruence adds 25, 20, 26, 6, 5 and −40 to reach 42, whose remainder after dividing by 7 is 0, the code for Saturday.
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Zodiac element calculator
A March 25 birthday is Aries: element fire, modality cardinal, sharing fire with Leo and Sagittarius.
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Western zodiac sign calculator
A March 25 birthday falls under Aries, the sign that runs from March 21 to April 19. Enter a birth month and day to get the sign, its symbol and its date window…
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🏗️ Engineering & constructionFree
AWG ampacity calculator
Pick a wire gauge, an insulation class and copper or aluminum, and read the maximum safe continuous current: 12 AWG copper at 75 °C carries 25 A.
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AWG wire gauge calculator
Turn an AWG size into solid-copper diameter, cross-section and DC resistance: AWG 10 is about 2.59 mm across with 5.26 mm² of copper.
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Battery life calculator
Divide a cell's milliamp-hour rating by the device's average draw in milliamps to estimate runtime: a 3000 mAh phone cell at 150 mA lasts 20 hours.
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Capacitive reactance calculator
A 100 µF capacitor at 60 Hz presents about 26.5258238486 Ω, and the figure drops as frequency or capacitance rises.
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Capacitor charge calculator
A 1 µF capacitor held at 5 V stores 5 µC, and this calculator gives that product of capacitance and voltage in coulombs.
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Capacitor charging calculator
With 1 kΩ, 1 µF and a 5 V supply, the capacitor reaches 3.16060279414 V after 1 ms, which is one time constant and 63.2120558829% of the supply.
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Parallel capacitance calculator
Three capacitors of 10, 22 and 47 µF in parallel give 79 µF: the values simply add. Enter the list in one unit to check a decoupling bank on a power rail or a…
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Series capacitance calculator
Capacitors of 10, 20 and 47 µF in series come out a little under 6 µF, always below the smallest one.
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Electric charge calculator
A steady 2 A flowing for 5 seconds moves 10 coulombs. Enter any two of charge, current and time and the calculator finds the third, refusing negative durations…
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Coulomb's law calculator
Charges of 2 µC and -3 µC held 0.05 m apart attract each other with about twenty-one and a half newtons.
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