Dollar calculator

Enter any amount and see what it funds at each project, in concrete units. Every amount is treated the same.

Example data. Projects, unit costs and efficiency figures are fictional placeholders. See the methodology.

What $500 funds

Showing $500 by default. Every amount is treated the same way: units = amount × efficiency ÷ unit cost. Method.

One-time gift of $500

$500 protects 0.2 acres Example: Prairie Parcel Preservation Project Environment & Land Preservation · 96¢ of each $1 reaches the work
$500 maps 0.4 sq km Example: LiDAR Lost Landscapes Survey Open Science & Archaeology · 95¢ of each $1 reaches the work
$500 analyzes 1.9 sample panels Example: Aging Biomarker Open Lab Longevity Research · 94¢ of each $1 reaches the work
$500 monitors less than 0.1 test wells Example: Community Geothermal Pilot Geothermal & Clean Energy Research · 93¢ of each $1 reaches the work
$500 places 0.6 senior dogs Example: Senior Shelter Dog Rescue Animal Welfare · 92¢ of each $1 reaches the work
$500 restores 11 meters of stream Example: Headwaters Restoration Crew Environment & Land Preservation · 91¢ of each $1 reaches the work
$500 builds 6 water sensor kits Example: Open Hardware Water Sensors Technological Innovation · 90¢ of each $1 reaches the work
$500 provides 1.3 weeks of transitional housing Example: Recovery & Reentry Bridge Housing Second Chances & Community · 90¢ of each $1 reaches the work
$500 runs less than 0.1 study replications Example: Healthspan Replication Fund Longevity Research · 89¢ of each $1 reaches the work
$500 publishes less than 0.1 public audits Example: Open Ledger Audit Collective Crypto & Open Finance · 87¢ of each $1 reaches the work
$500 runs 0.1 clinic days Example: Rural Vet Access Program Animal Welfare · 85¢ of each $1 reaches the work
$500 documents 2.7 repair guides Example: Repairable Tech Library Technological Innovation · 82¢ of each $1 reaches the work
$500 onboards 0.8 community groups Example: Community Microfinance Commons Crypto & Open Finance · 78¢ of each $1 reaches the work
Not yet rated: no estimate Example: Village Solar Kiln Collective Geothermal & Clean Energy Research · Not yet rated

Monthly gift of $500 a month

$500/month feeds 38 colony cats Ongoing Example: Barn Cat Colony Caretakers Animal Welfare · 91¢ of each $1 reaches the work
$500/month mentors 3.7 young people Ongoing Example: Youth Restorative Circles Second Chances & Community · 88¢ of each $1 reaches the work
$500/month monitors 11 stream sites Ongoing Example: Creekside Water Monitors Environment & Land Preservation · 64¢ of each $1 reaches the work

Sorted by efficiency rating, highest first; projects not yet rated come last with no estimate. Ongoing projects have no finish line, so they are shown as monthly gifts. Example data: fictional projects and placeholder unit costs.

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