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Split Bill CalculatorSplit a bill by people, tax, service charge, and custom adjustment.Score 52billgroupBill Split CalculatorSplit a bill with tip across multiple people.Score 44billgroupWater Bill CalculatorEstimate water cost from gallons used and rate per thousand gallons.Score 38billElectricity Bill CalculatorEstimate electricity bill with usage tiers, fixed fees, and tax.Score 38billKids Multiplication CalculatorExplore multiplication as equal groups with blocks, step-by-step solving, and practice questions.Score 24groupCost Per Traveler CalculatorSplit total trip cost across travelers.Score 22groupTip CalculatorCalculate tip amount and total bill.Score 22billKids Division CalculatorUnderstand division as equal sharing with guided steps, visual counters, and answer checking.Score 16groupElectricity Cost CalculatorEstimate electricity cost from wattage, usage time, and price per kWh.Score 14billRecipe Scale CalculatorScale ingredient quantity for a different number of servings.Score 12groupData Transfer Cost CalculatorEstimate data transfer cost from usage and price per GB.Score 12billCombination CalculatorCalculate combinations where order does not matter.Score 12groupWater Usage CalculatorEstimate household water usage from people, daily use, garden use, and days.Score 12billKids Times Tables PracticePractice times tables with equal-group blocks, random questions, answer checking, and steps.Score 6groupAtomic Number LookupFind an element by atomic number and view its symbol, mass, group, period, and category.Score 4groupMortgage CalculatorEstimate monthly mortgage payments, total interest, principal, and payoff cost.Score 2BMI CalculatorCalculate body mass index using metric or imperial units and view the standard BMI category.Score 2Compound Interest CalculatorProject future investment value with compounding frequency and recurring contributions.Score 2Fuel Cost CalculatorEstimate advanced trip fuel cost with distance modes, efficiency units, fuel price units, emissions, commute projections, and vehicle comparisons.Score 2Scientific CalculatorUse a keyboard-friendly scientific calculator with trig, logs, powers, constants, and memory.Score 2