Number 1: 
CalcAttendance
Free attendance calculator for students to track how many classes they can safely miss
- Calculators
- DR 0 no change since last check
Parts bin · 73 builds
Calculators
Browser-based calculators that turn a handful of inputs into a clear answer, built by makers who got tired of doing the sums by hand.
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Number 2:
ConcreteCostCalcFree concrete cost calculator priced for your metro area
- Calculators
- United States
- DR 4 −1 (down) since last check
Number 3:
NavicostCalculate real profitability, margin and minimum pricing for road transport in 30 seconds
- Calculators
- France
- DR 6 +1 (up) since last check
Number 4:
BetaConvertOnline unit converter for everyday use
- Calculators
- Ukraine
- DR 48 no change since last check
Number 5: Quoai
AI-powered quote calculator for tech projects
- Calculators
- France
- DR 4 no change since last check
Number 6:
Intermittent Fasting CalculatorFree tool to plan your fasting schedule and eating windows with personalized nutrition targets
- Calculators
- DR 15 −1 (down) since last check
Number 7:
CalculatorPressFree online calculators for finance, math, health, and daily use
- Calculators
- DR 4 no change since last check
Number 8:
401k CalculatorFree, real-time 401(k) calculator showing contributions, employer match and compound growth
- Calculators
- DR 7 no change since last check
Number 9:
Any Dividend CalculatorFree dividend and investment calculators for projecting portfolio growth
- Calculators
- DR 16 no change since last check
Number 10:
How Many Camels Am I WorthFree entertainment calculator that scores how many camels you're worth based on age, height, appearance and personality
- Calculators
- United Kingdom
- DR 0 no change since last check
Number 11:
HoursHQUK calculators for work, hours and pay with every figure cited to source
- Calculators
- United Kingdom
- DR 0 no change since last check
Number 12:
Tally My ProjectFree calculators for home improvement, Indian real estate, and AI-generated floor plans
- Calculators
- DR 1 no change since last check
Number 13:
Best CountdownFree online countdown timer with custom sounds, themes, and sharing
- Calculators
- DR 15 +1 (up) since last check
Number 14:
Milligrams to GramsFree metric weight converter for milligrams, grams and micrograms
- Calculators
- DR 1 no change since last check
Number 15:
SignPricerFree sign job cost calculators for small sign shops
- Calculators
- DR 2 +1 (up) since last check
Number 16:
GetBirthChartFree birth chart calculator with AI interpretation from your birth data
- Calculators
- United States
- DR 18 no change since last check
Number 17:
PantryGaugeIngredient-aware grams to cups converter for baking
- Calculators
- DR 0 no change since last check
Number 18:
Ton to KgFree, real-time converter for tons to kilograms with exact SI constants
- Calculators
- DR 6 no change since last check
Number 19:
AstroCartoFree astrocartography chart and interactive map calculator for relocation, travel, and life decisions
- Calculators
- DR 36 −1 (down) since last check
Number 20:
HonestCreditFinancial calculators to answer real-world money questions
- Calculators
- DR 34 +1 (up) since last check
Number 21:
CalculatorFoxFree online calculators with step-by-step workings and cited sources, embeddable on any website
- Calculators
- United Kingdom
- DR 23 −1 (down) since last check
Number 22:
CDCalculatorFree financial calculators for certificates of deposit, mortgages, retirement, and loans with charts and schedules
- Calculators
- DR 4 −1 (down) since last check
Number 23:
HaulestFree moving calculators and mover research desk
- Calculators
- United States
- DR 32 +27 (up) since last check
Number 24:
Easy Calculator NexFree online calculators for money, work, health, and home projects
- Calculators
- DR 15 −3 (down) since last check
Community votes come from makers and cannot be bought. DR is Domain Rating by Ahrefs.
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PinoyFreelance.PH$5 - 2
Zinn Hub$5 - 3
Zinn Digital®$5 - 4
PBN LTD$5
About Calculators
Single-purpose calculators for money, measurements, planning and everyday sums. Most were built to scratch the maker's own itch. Look for visible workings, sensible defaults and a result you can check against your own back-of-envelope figures.
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