Best calculator tools
A curated list of tools tagged calculator — free to browse, no sign-up required.
Finland Electricity Price Tracker
Free electricity spot price tracker for Finland.
Claude Haiku 5.5 Pricing Calculator
Estimate Claude Haiku token costs instantly.
Calc Zest
Free Online Calculators for Finance, Tax & Healthcare | Calc Zest
Watt Garden
Plan daily electricity use and compare outage loads with your battery.
Sticker Printer Hub
Independent sticker printer guides, cost calculator and free 4x7 sheet maker
EUParcelFee
Estimate EU import duty, VAT and parcel costs
Energy Radar
Free backup power sizing calculator for Ukrainian homes and small businesses.
BuildQuantities
41 free construction calculators with visible formulas
AION2 Forge
Free AION 2 Sorcerer skill and Stigma planner for Global level 45
Figuro
Free online calculators and useful tools for everyday calculations
Inbox Tally
Compare email platform costs for your list size and sending frequency.
Workflow Math
Compare automation costs using your actual workflow runs and steps.
DefiLPKit
Concentrated liquidity calculator: net LP yield after impermanent loss and gas
ProfitPal
ree profit calculator for small businesses, sellers, freelancers, and entrepreneurs.
PixelToInch
Convert pixel dimensions to print sizes using PPI
Meu Arcano Pessoal
Free Arcano Pessoal calculator and tarot guide in Portuguese
Global Paperback Royalty Planner
Estimate paperback royalties across KDP marketplaces using local print costs and royalty thresholds.
Regolith Card Fee Guide
Compare Online and Travel card fees before you apply
toolinbox
pdf, calculator, jpg, image, internet, pdf to jpg, jpg to pdf, pdf merger, calculator, storage
Dose Calcs
Browser-based math for checking prescribed doses and unit conversions.
Stair Calculator
Design perfect stairs in seconds
Build The Pyramid Codes
Independent Roblox code reports, guides and a build calculator.
TipOut Split
Free tip-pool calculator for restaurants and bars
ApostaLab
Free calculators and analysis tools for betting
Carry China Price Check
Compare the full cost of shopping in China
NewsletterFit
Compare newsletter platforms by pricing, fees and growth.
Interior Design Project Budget Calculator
See what remains after paid costs and open commitments.
PracticalKit Tools
Free, private toolkit for freelancers
Percent to Prompts
Estimate remaining AI prompts and plan usage pace.
Wangdada Labs
Hosting guides and a private cost calculator for small sites
BenchQuote3D
Free browser-based 3D print cost, pricing, G-code and STL calculators for small sellers
Freelance Cash Runway
Free 30-day cash runway calculator for freelancers and microbusinesses
BaZi Calculator
Free Four Pillars chart calculator with clear English guidance
PrintTuned
Practical 3D printing guides and a free spool fit checker
ZammioHub
Free online calculators for finance, health, math, and everyday needs
GradeClarity
See what score you need on your final
Precifica Serviço
Calculadora de valor-hora e preço de projeto para freelancers e prestadores.
ProfitCalcTools
Free ecommerce profit calculators for online sellers
Calcul Heure
Free online calculator for work hours, breaks, overtime, and decimal hours.
WageFrame
Private, official-source paycheck estimates for U.S. workers
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