Collections

Calculator collections by role and outcome.

Start from the result you need or the work you do, then open the calculators that fit that workflow. Collections group Calwarden tools around outcomes, roles, tasks, and planning needs.

29 collections

Outcome and role-based groups for savings, operations, AI costs, vendor comparisons, and more.

245+ linked tools

Collections point to existing calculators without changing how each tool works.

Client-side first

Calculations stay in the browser, with no account required to browse or use tools.

Outcome collections

Choose the outcome first, then jump into the calculators that support that decision.

12 Tools
Save money

Save Money Calculators

Budget, debt payoff, refinance, home energy, transportation, AI usage, and vendor savings calculators for finding practical cost reductions.

Browse collection
12 Tools
Business costs

Estimate Business Cost Calculators

Break-even, SaaS pricing, customer acquisition, loan, contractor, payment fee, subscription, payback, and depreciation calculators for business planning.

Browse collection
13 Tools
Healthcare operations

Plan Healthcare Operations Calculators

Hospital capacity, ED flow, staffing, OR utilization, claims backlog, revenue cycle, downtime, appeal, and PACS migration calculators.

Browse collection
12 Tools
AI app costs

Calculate AI App Cost Calculators

AI app planning, LLM token, API, OpenRouter, RAG, vector database, embedding storage, OCR, image generation, Make, n8n, and batch savings calculators.

Browse collection
11 Tools
Home energy savings

Estimate Home Energy Savings Calculators

Home energy planner, solar, heat pump, appliance, home office, refrigerator, window, insulation, battery, and gas-versus-electric savings calculators.

Browse collection
12 Tools
Cloud infrastructure

Plan Cloud Infrastructure Calculators

Cloud migration, storage, VM, S3, backup, CDN, API, email, Kubernetes, disaster recovery, VM sizing, and log retention calculators.

Browse collection
12 Tools
Ecommerce profit

Calculate Ecommerce Profit Calculators

Ecommerce launch, Shopify, Amazon FBA, Etsy, margin, bundle, landed cost, break-even ROAS, returns, fulfillment, packaging, and FBA storage calculators.

Browse collection
13 Tools
Deadlines and compliance

Estimate Deadline and Compliance Dates Calculators

Business day, court, contract, lease, statute, compliance, HIPAA, timely filing, claim, SSL, security deposit, and passport deadline calculators.

Browse collection
13 Tools
Vendor costs

Compare Vendor Costs Calculators

Software licensing, SaaS seats, vendor price increases, renewals, multi-year savings, consolidation, buy-versus-lease, build-versus-buy, TCO, implementation, migration, and support cost calculators.

Browse collection
14 Tools
Storage and bandwidth

Calculate Storage and Bandwidth Needs Calculators

Data unit, download time, video size, RAID, NAS, NVR, camera bitrate, log retention, PACS, DICOM, radiology bandwidth, teleradiology upload, cloud PACS, and home internet bandwidth calculators.

Browse collection

Featured role collections

Start with the role-based groups that cover the most common Calwarden workflows.

All calculator collections

Browse every outcome and role collection, then jump into the calculators linked to that workflow.

12 Tools
Save money

Save Money Calculators

Budget, debt payoff, refinance, home energy, transportation, AI usage, and vendor savings calculators for finding practical cost reductions.

Browse collection
12 Tools
Business costs

Estimate Business Cost Calculators

Break-even, SaaS pricing, customer acquisition, loan, contractor, payment fee, subscription, payback, and depreciation calculators for business planning.

Browse collection
13 Tools
Healthcare operations

Plan Healthcare Operations Calculators

Hospital capacity, ED flow, staffing, OR utilization, claims backlog, revenue cycle, downtime, appeal, and PACS migration calculators.

Browse collection
12 Tools
AI app costs

Calculate AI App Cost Calculators

AI app planning, LLM token, API, OpenRouter, RAG, vector database, embedding storage, OCR, image generation, Make, n8n, and batch savings calculators.

Browse collection
11 Tools
Home energy savings

Estimate Home Energy Savings Calculators

Home energy planner, solar, heat pump, appliance, home office, refrigerator, window, insulation, battery, and gas-versus-electric savings calculators.

Browse collection
12 Tools
Cloud infrastructure

Plan Cloud Infrastructure Calculators

Cloud migration, storage, VM, S3, backup, CDN, API, email, Kubernetes, disaster recovery, VM sizing, and log retention calculators.

Browse collection
12 Tools
Ecommerce profit

Calculate Ecommerce Profit Calculators

Ecommerce launch, Shopify, Amazon FBA, Etsy, margin, bundle, landed cost, break-even ROAS, returns, fulfillment, packaging, and FBA storage calculators.

Browse collection
13 Tools
Deadlines and compliance

Estimate Deadline and Compliance Dates Calculators

Business day, court, contract, lease, statute, compliance, HIPAA, timely filing, claim, SSL, security deposit, and passport deadline calculators.

Browse collection
13 Tools
Vendor costs

Compare Vendor Costs Calculators

Software licensing, SaaS seats, vendor price increases, renewals, multi-year savings, consolidation, buy-versus-lease, build-versus-buy, TCO, implementation, migration, and support cost calculators.

Browse collection
14 Tools
Storage and bandwidth

Calculate Storage and Bandwidth Needs Calculators

Data unit, download time, video size, RAID, NAS, NVR, camera bitrate, log retention, PACS, DICOM, radiology bandwidth, teleradiology upload, cloud PACS, and home internet bandwidth calculators.

Browse collection
10 Tools
Workflow calculators

Workflow Calculators and Planning Wizards

Multi-step planners for appeal packets, PACS migrations, AI app costs, SaaS pricing, cloud migration, home energy, EV trips, ecommerce launches, rental analysis, and break-even planning.

Browse collection
13 Tools
Medical billers

Calculators for Medical Billers

Revenue cycle, denial, timely filing, patient responsibility, and reimbursement calculators for medical billing work.

Browse collection
9 Tools
IT admins

Calculators for IT Admins

Subnet, uptime, backup, storage, cloud cost, password, security, and infrastructure calculators for IT operations.

Browse collection
9 Tools
Freelancers

Calculators for Freelancers

Hourly rate, contractor take-home, tax reserve, invoice, payment fee, profit, and pricing calculators for independent workers.

Browse collection
9 Tools
Ecommerce sellers

Calculators for Ecommerce Sellers

Margin, shipping, packaging, marketplace fee, ROAS, inventory, returns, landed cost, and fulfillment calculators for online stores.

Browse collection
9 Tools
California residents

Calculators for California Residents

California paycheck, sales tax, housing, rent, utilities, commute, vehicle registration, EV charging, and insurance calculators.

Browse collection
8 Tools
Healthcare IT teams

Calculators for Healthcare IT Teams

HIPAA timing, PHI risk, downtime, RTO/RPO, audit storage, access review, SIEM, interface monitoring, and PACS impact calculators.

Browse collection
9 Tools
Hospital operations

Calculators for Hospital Operations Managers

Capacity, occupancy, staffing, throughput, ED flow, OR utilization, no-show, backlog, and discharge delay calculators.

Browse collection
9 Tools
Claims adjusters

Calculators for Insurance Claims Adjusters

Deductible, coinsurance, allowed amount, settlement, reserves, claim aging, appeal success, and reimbursement lag calculators.

Browse collection
9 Tools
Real estate investors

Calculators for Real Estate Investors

Cap rate, cash-on-cash, DSCR, rental ROI, NOI, flips, BRRRR, rehab, property management, and tax timeline calculators.

Browse collection
8 Tools
Content marketers

Calculators for Content Marketers and Affiliate Site Owners

SEO traffic value, ad revenue, affiliate conversion, content ROI, keyword break-even, article cost, and sponsorship calculators.

Browse collection
8 Tools
Creators

Calculators for Creators and Digital Product Sellers

Digital product profit, course revenue, newsletter revenue, YouTube RPM, sponsorship, Patreon, Gumroad, and coaching calculators.

Browse collection
9 Tools
Procurement

Calculators for Procurement and Vendor Managers

TCO, implementation cost, migration cost, contract termination, SaaS seats, renewal uplift, SLA credit, and vendor savings calculators.

Browse collection
9 Tools
Parents

Calculators for Parents and School Planners

Childcare, school budgets, allowance, screen time, sleep schedule, birthday, vacation, babysitter, and grocery calculators.

Browse collection
9 Tools
Immigration planners

Calculators for Immigration and Travel Document Planners

Visa, passport, I-94, green card, physical presence, Schengen, H-1B, OPT, and document fee calculators.

Browse collection
10 Tools
Web developers

Calculators for Web Developers

JSON, Base64, URL encoding, password, meta tag, fluid typography, px-to-rem, color, and shadow utilities.

Browse collection
10 Tools
Contractors and DIY

Calculators for Contractors and DIY Homeowners

Concrete, paint, flooring, drywall, roofing, fence, deck, gravel, HVAC, solar, and home utility calculators.

Browse collection
10 Tools
EV and car owners

Calculators for EV and Car Owners

EV charging cost, charging time, range loss, fuel cost, lease vs buy, depreciation, insurance, registration, commute, and road trip calculators.

Browse collection
10 Tools
Radiology and PACS

Calculators for Radiology and PACS Admins

PACS storage, DICOM transfer, cloud PACS cost, study storage, migration time, compression, modality worklist, turnaround, and productivity calculators.

Browse collection