Developer Utilities
Small developer utilities that save a trip to a random website. Encode and decode Base64, explain a regex, build UTM links, generate QR codes and vCards, and more — the everyday helpers. Free in your browser, and available by API when you need them in a script.
Developer Utilities
CPM calculator
cost per thousand impressions, free online
POST /fin/cpm$0.002Developer Utilities
Credit card payoff calculator
months and total interest
POST /fin/credit-card$0.002Developer Utilities
Credit card interest calculator
billing-cycle charge from APR
POST /fin/credit-card-interest$0.002Developer Utilities
Credit card payment calculator
months and total interest
POST /fin/credit-card-payment$0.002Developer Utilities
Credit spread calculator
bond yield vs Treasury in basis points
POST /fin/credit-spread$0.002Developer Utilities
Credit utilization calculator
total balances vs credit limits
POST /fin/credit-utilization$0.002Developer Utilities
Cross-price elasticity calculator
XED from quantity and price
POST /fin/cross-price-elasticity$0.002Developer Utilities
CTR calculator
click-through rate from clicks and impressions
POST /fin/ctr$0.002Developer Utilities
Currency forward calculator
FX from spot, rates and tenor
POST /fin/currency-forward$0.002Developer Utilities
Customer effort score calculator
average CES from ratings
POST /fin/customer-effort-score$0.002Developer Utilities
Cyber Monday calculator
sale price and savings from discount
POST /fin/cyber-monday$0.002Developer Utilities
DART rate calculator
OSHA days away cases per 100 workers
POST /fin/dart-rate$0.002Developer Utilities
Days inventory outstanding calculator
DIO from inventory and COGS
POST /fin/days-inventory-outstanding$0.002Developer Utilities
DSO calculator
days sales outstanding from AR and credit sales
POST /fin/days-sales-outstanding$0.002Developer Utilities
DCF calculator
discounted cash flow present value
POST /fin/dcf$0.002Developer Utilities
Deadweight loss calculator
triangle from price and quantity change
POST /fin/deadweight-loss$0.002Developer Utilities
Total debt calculator
short-term, long-term, fixed liabilities
POST /fin/debt$0.002Developer Utilities
Debt avalanche calculator
payoff order and total interest
POST /fin/debt-avalanche$0.002Developer Utilities
Debt consolidation calculator
new payment and interest savings
POST /fin/debt-consolidation$0.002Developer Utilities
Debt payoff calculator
months to payoff and total interest
POST /fin/debt-payoff$0.002Developer Utilities
Debt snowball calculator
payoff order and months to clear
POST /fin/debt-snowball$0.002Developer Utilities
Debt-to-asset ratio calculator
leverage from total liabilities and assets
POST /fin/debt-to-asset$0.002Developer Utilities
Debt-to-capital ratio calculator
total debt over capital
POST /fin/debt-to-capital$0.002Developer Utilities
Debt-to-equity calculator
D/E from liabilities and equity
POST /fin/debt-to-equity$0.002Developer Utilities
Defensive interval ratio calculator
days covered by liquid assets
POST /fin/defensive-interval-ratio$0.002Developer Utilities
Deferred annuity calculator
present value of delayed payments
POST /fin/deferred-annuity$0.002Developer Utilities
Deferred payment loan calculator
lump sum due at maturity
POST /fin/deferred-payment-loan$0.002Developer Utilities
Depreciation calculator
periodic amount and book-value schedule
POST /fin/depreciation$0.002Developer Utilities
Direct material price variance
(AP − SP) × quantity purchased
POST /fin/direct-material-price-variance$0.002Developer Utilities
Discount rate calculator
rate per period from PV, FV, and n
POST /fin/discount-rate$0.002Developer Utilities
Discretionary income calculator
remaining after taxes and essentials
POST /fin/discretionary-income$0.002Developer Utilities
Dividend discount model
Gordon growth value per share
POST /fin/divdend-discount-model$0.002Developer Utilities
Dividend calculator
DPS and yield from total cash and shares
POST /fin/dividend$0.002Developer Utilities
Double discount calculator
two successive percents, final price
POST /fin/double-discount$0.002Developer Utilities
Down payment calculator
cash needed from home price
POST /fin/down-payment$0.002Developer Utilities
Dream come true calculator
shortfall or surplus to the goal
POST /fin/dream-come-true$0.002Developer Utilities
DSCR calculator
debt service coverage ratio from NOI
POST /fin/dscr$0.002Developer Utilities
DTI calculator
debt-to-income percent from monthly debt
POST /fin/dti$0.002Developer Utilities
DuPont analysis calculator
ROE from margin, turnover, leverage
POST /fin/dupont-analysis$0.002Developer Utilities
EAR calculator
effective annual rate from a nominal rate
POST /fin/ear$0.002Developer Utilities
Early retirement calculator
nest egg from expenses and SWR
POST /fin/early-retirement$0.002Developer Utilities
Earned value management
CV, SV, CPI and SPI from PV, EV, AC
POST /fin/earned-value-management$0.002Developer Utilities
Earnest money calculator
deposit from purchase price and percent
POST /fin/earnest-money$0.002Developer Utilities
EBIT calculator
earnings before interest and taxes from revenue
POST /fin/ebit$0.002Developer Utilities
EBITDA multiple calculator
EV ÷ EBITDA valuation, free
POST /fin/ebitda-multiple$0.002Developer Utilities
EBT calculator
earnings before tax from revenue and expenses
POST /fin/ebt$0.002Developer Utilities
Economic injury disaster loan calculator
max amount from expenses
POST /fin/economic-injury-disaster-loan$0.002Developer Utilities
EVA calculator
economic value added from NOPAT and WACC
POST /fin/economic-value-added$0.002Developer Utilities
Effective annual yield
annualize a holding-period yield
POST /fin/effective-annual-yield$0.002Developer Utilities
Effective corporate tax rate calculator
tax expense over pretax income
POST /fin/effective-corporate-tax-rate$0.002Developer Utilities
Effective duration calculator
bond price sensitivity to yield
POST /fin/effective-duration$0.002Developer Utilities
Effective interest rate calculator
implied rate from PV, FV, n
POST /fin/effective-interest-rate$0.002Developer Utilities
ELSS calculator
projected maturity from principal and years
POST /fin/elss$0.002Developer Utilities
EMI calculator
equated monthly installment from principal
POST /fin/emi$0.002Developer Utilities
EMV calculator
expected monetary value from payoffs
POST /fin/emv$0.002Developer Utilities
Ending inventory calculator
closing stock from purchases and COGS
POST /fin/ending-inventory$0.002Developer Utilities
Enterprise value calculator
EV from market cap, debt and cash
POST /fin/enterprise-value$0.002Developer Utilities
EOQ calculator
economic order quantity from demand and costs
POST /fin/eoq$0.002Developer Utilities
EPF calculator
employee provident fund balance at retirement
POST /fin/epf$0.002Developer Utilities
EPS calculator
earnings per share from net income and shares
POST /fin/eps$0.002